The two foes of human happiness are pain and boredom

The two enemies of human happiness are pain and boredom.

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

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

The deep pain that is felt at the death of every friendly soul arise from the feeling that there is in every individual something which is inexpressible, peculiar to him alone, and is, therefore, absolutely and irretrievably lost

Happiness consists in frequent repetition of pleasure