The existence of virtue depends entirely upon its use.

As a philosopher, I have a right to ask for a rational explanation of religious faith.

When trying a case [the famous judge] L. Cassius never failed to inquire "Who gained by it?" Man's character is such that no one undertakes crimes without hope of gain.

Men decide far more problems by hate, love, lust, rage, sorrow, joy, hope, fear, illusion or some other inward emotion, than by reality, authority, any legal standard, judicial precedent, or statute.

A mental stain can neither be blotted out by the passage of time nor washed away by any waters.

In nothing do humans approach so nearly to the gods as doing good to others.

I am much beholden to old age, which has increased my eagerness for conversation in proportion as it has lessened my appetites of hunger and thirst.