Life swings like a pendulum backward and forward between pain and boredom.

If life — the craving for which is the very essence of our being — were possessed of any positive intrinsic value, there would be no such thing as boredom at all: mere existence would satisfy us in itself, and we should want for nothing.

What keeps all living things busy and in motion is the striving to exist. But when existence is secured, they do not know what to do: that is why the second thing that sets them in motion is a striving to get rid of the burden of existence, not to feel it any longer, 'to kill time', i.e. to escape boredom.

If at any moment Time stays his hand, it is only when we are delivered over to the miseries of boredom.

Boredom is certainly not an evil to be taken lightly: it will ultimately etch lines of true despair onto a face. It makes beings with as little love for each other as humans nonetheless seek each other with such intensity, and in this way becomes the source of sociability.

The two foes of human happiness are pain and boredom