But by far the greatest obstacle to the progress of science and to the undertaking of new tasks and provinces therein is found in this-that men despair and think things impossible.

The inclination to goodness is imprinted deeply in the nature of man.

It is a great happiness when men's professions and their inclinations accord.

Truth emerges more readily from error than from confusion.

Fortune is like the market, where, many times, if you can stay a little, the price will fall.

Ask counsel of both timesof the ancient time what is best, and of the latter time what is fittest.

Silence is the sleep that nourishes wisdom.