By physical liberty I mean the right to do anything which does not interfere with the happiness of another. By intellectual liberty I mean the right to think and the right to think wrong.

Secularism is a religion, a religion that is understood. It has no mysteries, no mumblings, no priests, no ceremonies, no falsehoods, no miracles, and no persecutions.

Religion can never reform mankind because religion is slavery.

Happiness is not a reward - it is a consequence. Suffering is not a punishment - it is a result.

Do you not know that every religion in the world has declared every other religion a fraud? Yes, we all know it. That is the time all religions tell the truth - each of the other.

Superstition is, always has been, and forever will be, the foe of progress, the enemy of education and the assassin of freedom.

The myth of hell represents all the meanness, all the revenge, all the selfishness, all the cruelty, all the hatred, all the infamy of which the heart of man is capable.

Happiness is the only good. The time to be happy is now. The place to be happy is here. The way to be happy is to make others so.

Give to every human being every right that you claim for yourself.

The intellectual advancement of man depends on how often he can exchange an old superstition for a new truth.

There can be but little liberty on earth while men worship a tyrant in heaven.

A person raised in a healthy family is equipped to live a confident and independent life

I wonder why it is that the countries with the most nobles also have the most misery?

Some people use things; they destroy. You're a creator, a builder.

There are no inherent limitations to the medium. There are just differences.

What is prayer but a wish for the events in your life to string together to form a story -- something that makes some sense of events you know have meaning.

There is only one social science and we are its practitioners

There are no institutions in America: there are only fashions.

When Richie Cunningham drank too many beers, his parents sat him down and explained their concerns. If you live on this earth, you find out that we are all the same.

I never saw any good that came of telling truth.

You are perfect as you are and there is always room for improvement.