Tragedy is an imitation not of men but of a life, an action

Intuition is the source of scientific knowledge.

One may go wrong in many different ways, but right only in one, which is why it is easy to fail and difficult to succeed.

Our account does not rob the mathematicians of their science... In point of fact they do not need the infinite and do not use it.

PLOT is CHARACTER revealed by ACTION.

A friend to all is a friend to none.

If thinking is like perceiving, it must be either a process in which the soul is acted upon by what is capable of being thought, or a process different from but analogous to that. The thinking part of the soul must therefore be, while impassable, capable of receiving the form of an object; that is, must be potentially identical in character with its object without being the object. Mind must be related to what is thinkable, as sense is to what is sensible.