Foolish jokers are thick on the ground, and it rains insects of that sort everywhere. A good joker is a rarity; even a man who is such by nature finds it hard to sustain the part for long; it seldom happens that the man who makes us laugh wins our esteem.

The pleasure of criticizing takes away from us the pleasure of being moved by some very fine things.

Languages are the keys of science.

It is because of men that women dislike one another.

Logic is the technique by which we add conviction to truth.

One should never risk a joke, even of the mildest and most unexceptional charters, except among people of culture and wit.

All of our unhappiness comes from our inability to be alone.