The person born with a talent they are meant to use will find their greatest happiness in using it.

Plato is my friend — Aristotle is my friend — but my greatest friend is truth.

One of the greatest discoveries a man makes, one of his great surprises, is to find he can do what he was afraid he couldn't do.

Toleration is the greatest gift of the mind; it requires the same effort of the brain that it takes to balance oneself on a bicycle.

Toleration is the greatest gift of the mind; it requires the same effort of the brain that it takes to balance oneself on a bicycle.

But what is liberty without wisdom, and without virtue? It is the greatest of all possible evils.

The greatest virtues are those which are most useful to other persons.