I have this really high priority on happiness and finding something to be happy about.

There can be no peace for us, only misery, and the greatest happiness.

Happiness is an allegory, unhappiness a story.

One of the first conditions of happiness is that the link between Man and Nature shall not be broken.

A lifetime of happiness! No man alive could bear it: it would be hell on earth.

Life at its noblest leaves mere happiness far behind; and indeed cannot endure it. Happiness is not the object of life: life has no object: it is an end in itself; and courage consists in the readiness to sacrifice happiness for an intenser quality of life.