For success, like happiness, cannot be pursued; it must ensue, and it only does so as the unintended side-effect of one's personal dedication to a cause greater than oneself or as the by-product of one's surrender to a person other than oneself.

I never would have made it if I could not have laughed. It lifted me momentarily out of this horrible situation, just enough to make it livable.

...to think of ourselves as those who were being questioned by life-daily and hourly. Our answer must consist, not in talk and meditation, but in right action and in right conduct.

What is demanded of man is not, as some existential philosophers teach, to endure the meaninglessness of life, but rather to bear his incapacity to grasp its unconditional meaningfulness in rational terms.

Since Auschwitz we know what man is capable of. And since Hiroshima we know what is at stake.

Human kindness can be found in all groups, even those which as a whole it would be easy to condemn.

The struggle for existence is a struggle 'for' something; it is purposeful and only in so being is it meaningful and able to bring meaning into life.