Now, the causes being four, it is the business of the student of nature to know about them all, and if he refers his problems back to all of them, he will assign the "why" in the way proper to his science-the matter, the form, the mover, that for the sake of which.

Where your talents and the needs of the world cross, therein lies your vocation. These two, your talents and the needs of the world, are the great wake up calls to your true vocation in life... to ignore this, is in some sense, is to lose your soul.

A promise made must be a promise kept.

Property should be in a general sense common, but as a general rule private... In well-ordered states, although every man has his own property, some things he will place at the disposal of his friends, while of others he shares the use of them.

It is evidently equally foolish to accept probable reasoning from a mathematician and to demand from a rhetorician demonstrative proofs.

Whatsoever that be within us that feels, thinks, desires, and animates, is something celestial, divine, and, consequently, imperishable.

When you ask a dumb question, you get a smart answer.