There is an attitude in the culture that says that everybody is entitled to their opinion. You got to respect their opinion. No, you damn well haven't got to respect their opinion.

Much as we might wish to believe otherwise, universal love and the welfare of the species as a whole are concepts which simply do not make evolutionary sense.

Do not indoctrinate your children. Teach them how to think for themselves, how to evaluate evidence, and how to disagree with you.

Faith is belief without evidence and reason; coincidentally that's also the definition of delusion.

Evolution is just a theory? Well, so is gravity and I don't see you jumping out of buildings.

Such delusions of grandeur to think that a God with a hundred billion galaxies on his mind would give a tuppenny damn who you sleep with, or indeed whether you believe in him.

The less you think, the more you believe.

How thoughtful of God to arrange matters so that, wherever you happen to be born, the local religion always turns out to be the true one.

The universe we observe has precisely the properties we should expect if there is, at bottom, no design, no purpose, no evil, no good, nothing but blind, pitiless indifference.

Science is the poetry of reality.

The theory of evolution by cumulative natural selection is the only theory we know of that is in principle capable of explaining the existence of organized complexity.

If there was anything that depressed him more than his own cynicism, it was that quite often it still wasn't as cynical as real life.

We see the world as we are.

It is unforgiveable to do what one doesn't love especially if one succeeds.

We are looking at a society increasingly dependent on machines, yet decreasingly capable of making or even using them effectively.

If a man is to lose his fortune, it is a good thing if he were poor before he acquired it, for poverty requires aptitude.

Art is constitutive-the artist determines beauty. He does not take it over.

One of the most irresponsible things we can do is eat in ignorance, without any awareness of what our eating is doing to the world or to other species.

Langmuir is a regular thinking machine. Put in facts, and you get out a theory.

Even when love isn't enough...somehow it is.

A person who is discreet in speaking will be useful during the good times and will avoid punishment during the bad.