Religions that teach brotherly love have been used as an excuse for persecution, and our profoundest scientific insight is made into a means of mass destruction.

To teach how to live without certainty and yet without being paralysed by hesitation is perhaps the chief thing that philosophy, in our age, can do for those who study it.

Dogmatism and skepticism are both, in a sense, absolute philosophies; one is certain of knowing, the other of not knowing. What philosophy should dissipate is certainty, whether of knowledge or ignorance.

I think we ought always to entertain our opinions with some measure of doubt. I shouldn't wish people dogmatically to believe any philosophy, not even mine.

Happiness will come from materialism, not from meaning.

For Mythology is the handmaid of literature; and literature is one of the best allies of virtue and promoters of happiness.

People say America is exceptional. I agree, but it's not the complexion of our skin or the twists in our DNA that make us unique. America is exceptional because we were founded upon the notion that everyone should be free to pursue life, liberty, and happiness.

Happiness depends more on how life strikes you than on what happens.