Aristotle - from Diogenes Laertius, Lives of Eminent Philosophers

What is a friend? A single soul dwelling in two bodies.
Aristotle - Politics
Man is by nature a political animal.
Aristotle
A flatterer is a friend who is your inferior, or pretends to be so.
Aristotle - Politics
They should rule who are able to rule best.
Aristotle
Dignity consists not in possessing honors, but in the consciousness that we deserve them.
Aristotle
Wit is educated insolence.
Aristotle - Nichomachean Ethics
For the things we have to learn before we can do them, we learn by doing them.
Aristotle - Nichomachean Ethics
Without friends no one would choose to live, though he had all other goods.
Aristotle
The gods too are fond of a joke
Aristotle
We are what we repeatedly do. Excellence, then, is not an act, but a habit.
Aristotle - Physics
Time crumbles things; everything grows old under the power of Time and is forgotten through the lapse of Time.
Aristotle
The ideal man bears the accidents of life with dignity and grace, making the best of circumstances.
Aristotle - Rhetoric
Evil draws men together.
Aristotle
Dignity does not consist in possessing honors, but in deserving them.
Aristotle
It is well to be up before daybreak, for such habits contribute to health, wealth, and wisdom.
Aristotle - Nichomachean Ethics
Piety requires us to honor truth above our friends.
Aristotle - Nichomachean Ethics
Without friends no one would choose to live, though he had all other goods.

Liars when they speak the truth are not believed.
Aristotle
All paid jobs absorb and degrade the mind.
Aristotle - Nichomachean Ethics
To be conscious that we are perceiving or thinking is to be conscious of our own existence.
Aristotle
Character is that which reveals moral purpose, exposing the class of things a man chooses or avoids
Aristotle - quoted in http://www-gap.dcs.st-and.ac.uk/~history/Mathematicians/Pythagoras.html
The Pythagorean ... having been brought up in the study of mathematics, thought that things are numbers ... and that the whole cosmos is a scale and a number.
Aristotle
A friend is a second self.
Aristotle
To perceive is to suffer.
Aristotle
Excellence is an art won by training and habituation. We do not act rightly because we have virtue or excellence, but we rather have those because we have acted rightly. We are what we repeatedly do. Excellence, then, is not an act but a habit.
Aristotle
Education is the best provision for the journey to old age.
Aristotle - Nichomachean Ethics
We make war that we may live in peace.
Aristotle - Rhetoric
A whole is that which has beginning, middle and end.
Aristotle
Man perfected by society is the best of all animals; he is the most terrible of all when he lives without law, and without justice.
Aristotle
Pleasure in the job puts perfection in the work.
Aristotle
We are what we repeatedly do. Excellence, then, is not an act but a habit.
Aristotle - Rhetoric
It is simplicity that makes the uneducated more effective than the educated when addressing popular audiences.
Aristotle
Happiness is a state of activity.
Aristotle - Rhetoric
The greatest virtues are those which are most useful to other persons.
Aristotle - Metaphysics
All men by nature desire knowledge.
Aristotle - Nichomachean Ethics
It is possible to fail in many ways...while to succeed is possible only in one way.
Aristotle - Nichomachean Ethics
To enjoy the things we ought and to hate the things we ought has the greatest bearing on excellence of character.
Aristotle
Happiness depends upon ourselves.
Aristotle - Nichomachean Ethics
With regard to excellence, it is not enough to know, but we must try to have and use it.
Aristotle
It is unbecoming for young men to utter maxims.
Aristotle
It is the mark of an educated mind to be able to entertain a thought without accepting it.
Aristotle - Metaphysica
The whole is more than the sum of its parts.
Aristotle
To love someone is to identify with them.
Aristotle
Wit is educated insolence.
Aristotle
It is unbecoming for young men to utter maxims.
Aristotle - Politics
Again, men in general desire the good, and not merely what their fathers had.
Aristotle - Rhetoric
A likely impossibility is always preferable to an unconvincing possibility.
Aristotle
it is the mark of an educated mind to be able to entertain a thought without accepting it.

Hope is a waking dream.
Aristotle - Politics (quoting a proverb)
Well begun is half done.
Aristotle - Eudemian Ethics
Misfortune shows those who are not really friends.
Aristotle
It is the mark of an educated mind to rest satisfied with the degree of precision which the nature of the subject admits and not to seek exactness where only an approximation is possible.
Aristotle
It is the mark of an educated mind to be able to entertain a thought without accepting it.
Aristotle
Both oligarch and tyrant mistrust the people, and therefore deprive them of their arms.
Aristotle
Those who educate children well are more to be honored than parents, for these only gave life, those the art of living well.
Aristotle - Parts of Animals
In all things of nature there is something of the marvelous.
Aristotle - Politics
If liberty and equality, as is thought by some are chiefly to be found in democracy, they will be best attained when all persons alike share in the government to the utmost.
Aristotle
Those that know, do. Those that understand, teach.
Aristotle - Nicomachen Ethics (4th c. BC)
In the arena of human life the honors and rewards fall to those who show their good qualities in action.
Aristotle
There was never a genius without a tincture of madness.
Aristotle
He who is unable to live in society, or who has no need because he is sufficient for himself, must be either a beast or a god.
Aristotle - unknown
A tyrant must put on the appearance of uncommon devotion to religion. Subjects are less apprehensive of illegal treatment from a ruler whom they consider god-fearing and pious. On the other hand, they do less easily move against him, believing that he has the gods on his side.
Aristotle
Wit is educated insolence.
Aristotle - Nichomachean Ethics
One swallow does not make a summer.

I have gained this by philosophy: that I do without being commanded what others do only from fear of the law.
Aristotle
Dignity consists not in possessing honors, but in the consciousness that we deserve them.
Aristotle
It is the mark of an educated mind to be able to entertain a thought without accepting it.
Aristotle - Nichomachean Ethics
For the things we have to learn before we can do them, we learn by doing them.
Aristotle
Mothers are fonder than fathers of their children because they are more certain they are their own.
Aristotle
The only stable state is the one in which all men are equal before the law.
Aristotle
Youth is easily deceived because it is quick to hope.
Aristotle
To Thales the primary question was not what do we know, but how do we know it.
Aristotle - Politics
The best political community is formed by citizens of the middle class.
Aristotle - Politics
Law is order, and good law is good order.
Aristotle - Politics
A state is not a mere society, having a common place, established for the prevention of mutual crime and for the sake of exchange...Political society exists for the sake of noble actions, and not of mere companionship.
Aristotle - Politics
He who is unable to live in society, or who has no need because he is sufficient for himself, must be either a beast or a god.
Aristotle
In the arena of human life the honours and rewards fall to those who show their good qualities.
Aristotle
We are what we repeatedly do.
Aristotle
To give a satisfactory decision as to the truth it is necessary to be rather an arbitrator than a party to the dispute.
Aristotle
Happiness is the meaning and the purpose of life, the whole aim and end of human existence.
Aristotle - Politics
Even when laws have been written down, they ought not always to remain unaltered.
Aristotle
No great genius has ever existed without some touch of madness.
Aristotle
Men acquire a particular quality by constantly acting a particular way...you become just by performing just actions, temperate by performing temperate actions, brave by performing brave actions.
Aristotle - Politics
It is the nature of desire not to be satisfied, and most men live only for the gratification of it.
Aristotle
All human actions have one or more of these seven causes: chance, nature, compulsion, habit, reason, passion, and desire.
Aristotle
The least deviation from truth will be multiplied later.
Aristotle
The gods too are fond of a joke.
Aristotle
It is in justice that the ordering of society is centered.
Aristotle - Nichomachean Ethics
We must as second best...take the least of the evils.
Aristotle - Politics
The basis of a democratic state is liberty.
Aristotle
All paid jobs absorb and degrade the mind.
Aristotle
Nature does nothing uselessly.
Aristotle
Humor is the only test of gravity, and gravity of humor; for a subject which will not bear raillery is suspicious, and a jest which will not bear serious examination is false wit.
Aristotle - Nicomachean Ethics, bk. 10, ch. 7, sct. 1177b
We make war that we may live in peace.
Aristotle
Patience is bitter, but its fruit is sweet.
Aristotle
We are what we repeatedly do. Excellence, then, is not an act but a habit.
Aristotle
All virtue is summed up in dealing justly.
Aristotle
Law is mind without reason.
Aristotle
Poverty is the parent of revolution and crime.
Aristotle
Humor is the only test of gravity, and gravity of humor; for a subject which will not bear raillery is suspicious, and a jest which will not bear serious examination is false wit.
Aristotle - Politics
Nature does nothing uselessly.
Aristotle
Education is the best provision for old age.
Aristotle
The aim of art is to represent not the outward appearance of things, but their inward significance.
Aristotle - In Stobaeus, Florilegium
I count him braver who overcomes his desires than him who overcomes his enemies.

Education is the best provision for old age.
Aristotle
He who cannot be a good follower cannot be a good leader.

- Aristotle - from Diogenes Laertius, Lives of Eminent Philosophers