Talent is long patience.

One never tires of what is well written, style is life! It is the very blood of thought!

Doubt … is an illness that comes from knowledge and leads to madness.

I don't believe that happiness is possible, but I think tranquility is.

But an infinity of passions can be contained in a minute, like a crowd in a tiny space.

Judge the goodness of a book by the energy of the punches it has given you. I believe the greatest characteristic of genius, is, above all, force.

The rage for wanting to conclude is one of the most deadly and most fruitless manias to befall humanity. Each religion and each philosophy has pretended to have God to itself, to measure the infinite, and to know the recipe for happiness. What arrogance and what nonsense! I see, to the contrary, that the greatest geniuses and the greatest works have never concluded.