Nothing is more terrible than to see ignorance in action.

The art of living rightly is like all arts; it must be learned and practiced with incessant care.

A teacher who can arouse a feeling for one single good action, for one single good poem, accomplishes more than he who fills our memory with rows and rows of natural objects, classified with name and form.

Reason can never be popular. Passions and feelings may become popular, but reason will always remain the sole property of a few eminent individuals.

He who has art and science also has religion, but those who do not have them better have religion.

The solution of every problem is another problem

We usually lose today, because there has been a yesterday, and tomorrow is coming.