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

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.

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.

Reason, observation, and experience; the holy trinity of science.

In general, the public knowledge base and thus decision-making behaviors are far more influenced by advertisement than with current science.

A single test which proves some piece of theory wrong is more valuable than a hundred tests showing that idea might be true.

I became very critical of zoos and circuses and keeping animals in captivity. I wish it was against the law.

User interface is customer service for the computer.

...if a child waited to speak until all the grown-ups settled down and gave her some room to say her piece, the most important things would never get said.

I would love to travel to the future to plot out some things so there's no more guess work.

To be like other people is to be unlike ourselves.

We will send ships and Marines as soon as possible for the protection of American life and property.