“If there is a human moral to be drawn, it is that we must teach our children altruism, for we cannot expect it to be part of their biological nature.”

Myths are fun, as long as you don’t confuse them with the truth.

Faith is the great cop-out, the great excuse to evade the need to think and evaluate evidence. Faith is the belief in spite of, even perhaps because of, the lack of evidence.

The majority of children born into the world tend to inherit the beliefs of their parents, and that to me is one of the most regrettable facts of them all.

It often turns out on closer inspection that acts of apparent altruism are really selfishness in disguise.

I cannot know for certain but I think God is very improbable, and I live my life on the assumption that he is not there.

You can make some inferences about a man’s character if you know something about the conditions in which he has survived and prospered.

Science has its own magic: the magic of reality.

Let’s be open-minded, but not so open-minded that our brains drop out.

If the history-deniers who doubt the fact of evolution are ignorant of biology, those who think the world began less than ten thousand years ago are worst than ignorant, they are the deluded to the point of perversity.

The idea of a divine creator belittles the elegant reality of the universe.

We admit that we are like apes, but we seldom realize that we are apes.

Let us try to teach generosity and altruism, because we are born selfish. Let us understand what our own selfish genes are up to, because we may then at least have the chance to upset their designs, something that no other species has ever aspired to do.

We are all atheists about most of the gods that humanity has ever believed in. Some of us just go one god further.

The chicken is only an egg’s way for making another egg.

Why, I can’t help wondering, is God thought to need such ferocious defence? One might have supposed him amply capable of looking after himself.

Religious fanatics want people to switch off their own minds, ignore the evidence, and blindly follow a holy book based upon private revelation.

Fathers are biological necessities, but social accidents.

I suddenly realized that through no act of my own I had become biologically related to a new human being.

What’s been gratifying is to live long enough to see molecular biology and evolutionary biology growing toward each other and uniting in research efforts.

I just want everybody to know that I’m opposed to an unauthorized biography on anybody.

Man can be understood only by ascending from physics, chemistry, biology, and geology. In other words, he is first of all a cosmic problem.

We study biology, physics, movements of glaciers… Where are the classes on envy, feeling wronged, despair, bitterness.

Downloading a Tamagotchi egg onto my phone is possibly the loudest my biological clock has ever ticked.

We are living in times when technology, biology and chemistry have created the possibility of killing in large numbers.