“There may be things that are completely unknowable to us, so we must be careful not to treat the limits of our knowledge as sure guides to the limit of what there is.”

Human consciousness is just about the last surviving mystery.

The chief trick to making good mistakes is not to hide them-especially not from yourself.

Religions have depended on the relative isolation and ignorance of their flocks, forever and this is all breaking down.

True, you don’t have to be religious to be crazy, but it helps. Indeed, if you are religious, you don’t have to be crazy in the medically certifiable sense in order to do massively crazy things.

Not a single one of the cells that compose you knows who you are, or cares.

We need to let our children grow up to face the world armed with knowledge, with much more knowledge than we ourselves had at their age. It is scary, but the alternative is worse.

I think religion for many people is some sort of moral viagra.

The way evolution always discovers reasons is by retroactive endorsement.

The evidence for evolution pours in, not only from geology, paleontology, biogeography, and anatomy, but of course from molecular biology and every other branch of the life sciences.

Cost is always an object – the second law of thermodynamics sees to that.

In the long run I certainly hope information is the cure for fanaticism, but I am afraid information is more the cause than the cure.

Darwin’s idea of natural selection makes people uncomfortable because it reverses the direction of tradition.

The haven all memes depend on reaching is the human mind, but a human mind is itself an artifact created when memes restructure a human brain in order to make it a better habitat for memes.

A child raised on a desert island, alone, without social interaction, without language, and thus lacking empathy, is still a sentient being.

Religion is defined as social systems whose participants avow a supernatural agent or agents whose approval is to be sought.

What you can imagine depends on what you know.