Johann von Neumann - on being phoned at 10:00 AM

You wake me up early in the morning to tell me I am right? Please wait until I am wrong.
Johann von Neumann
The sciences do not try to explain, they hardly even try to interpret, they mainly make models. By a model is meant a mathematical construct which, with the addition of certain verbal interpretations, describes observed phenomena. The justification of such a mathematical construct is solely and precisely that it is expected to work.

- Johann von Neumann - on being phoned at 10:00 AM