We are never deceived; we deceive ourselves.

We can most safely achieve truly universal tolerance when we respect that which is characteristic in the individual and in nations, clinging, though, to the conviction that the truly meritorious is unique by belonging to all of mankind.

Our wishes are presentiments of the abilities that lie in us, harbingers of what we will be able to accomplish.

When intelligent and sensible people despise knowledge in their old age, it is only because they have asked too much of it and of themselves.

Alas! how much there is in education, and in our social institutions, to prepare us and our children for insanity.

What then is your duty? What the day demands.

Where a man has a passion for meditating without the capacity of thinking, a particular idea fixes itself fast, and soon creates a mental disease.