Pythagoras

Rest satisfied with doing well, and leave others to talk of you as they please.

Above all things, reverence yourself.

It is better wither to be silent, or to say things of more value than silence. Sooner throw a pearl at hazard than an idle or useless word; and do not say a little in many words, but a great deal in a few.

Choose rather to be strong of soul than strong of body.

It is only necessary to make war with five things; with the maladies of the body, the ignorances of the mind, with the passions of the body, with the seditions of the city and the discords of families.

In anger we should refrain both from speech and action.

It is better wither to be silent, or to say things of more value than silence. Sooner throw a pearl at hazard than an idle or useless word; and do not say a little in many words, but a great deal in a few.

Do not say a little in many words but a great deal in a few.
Pythagoras - from Diogenes Laertius, Lives of Eminent Philosophers
Reason is immortal, all else mortal.

Do not talk a little on many subjects, but much on a few.

- Pythagoras