In practical life we are compelled to follow what is most probable ; in speculative thought we are compelled to follow truth.

I shall consider human actions and desires in exactly the same manner, as though I were concerned with lines, planes and solids.

Nothing in the universe is contingent, but all things are conditioned to exist and operate in a particular manner by the necessity of the divine nature.

The mind can only imagine anything, or remember what is past, while the body endures.

So long as a man imagines that he cannot do this or that, so long as he is determined not to do it; and consequently so long as it is impossible to him that he should do it.

Things which are accidentally the causes either of hope or fear are called good or evil omens.

He, who knows how to distinguish between true and false, must have an adequate idea of true and false.