If we do not allow free thinking in chemistry or biology, why should we allow it in morals or politics?

Positivism is a theory of knowledge according to which the only kind of sound knowledge available to human kind is that if science grounded in observation.

Nothing is destroyed until it is replaced.

The sacred formula of positivism: love as a principle, the order as a foundation, and progress as a goal.

Know yourself to improve yourself.

To reorganize society without God or King, by the systematic culture of Humanity.

Each department of knowledge passes through three stages. The theoretic stage; the theological stage and the metaphysical or abstract stage.

Everything is relative; and only that is absolute.

Woman is the most moral element in all humanity.

Religion is an illusion of childhood, outgrown under proper education.

Every science consists in the coordination of facts; if the different observations were entirely isolated, there would be no science.

If you've had the time to think about it, then you have time to pursue it.

When people say: she's got everything I've only one answer: I haven't had tomorrow.

The people I want are very famous and very rich, and all I can offer them is a bit of exposure on TV and a bit of cash, so it's a miracle we get any guests at all. But we have been very lucky.

It is very important to know who you are. To make decisions. To show who you are.

Self-love is the love of a man's own self, and of everything else for his own sake. It makes people idolaters to themselves, and tyrants to all the world besides.

Is religion a force for good? The evidence of history and the evidence of current events cast doubt on the truism.

Debt is always repaid, either by the borrower or by the lender.

Roosevelt understands that there are things that are worth surrendering your career for, like defending the country against [Adolf] Hitler.

I confess I take perverse delight as a theologian in the controversies surrounding postmodernism.

The seasons alter: hoary-headed frosts Fall in the fresh lap of the crimson rose.