Religion may have become a codification of morality, and it may fortify it, but it's not the origin of it.

To endow animals with human emotions has long been a scientific taboo. But if we do not, we risk missing something fundamental, about both animals and us.

The enemy of science is not religion... . The true enemy is the substitution of thought, reflection, and curiosity with dogma.

If we look straight and deep into a chimpanzee's eyes, an intelligent self-assured personality looks back at us. If they are animals, what must we be?

If you ask anyone, what is morality based on? These are the two factors that always come out: One is reciprocity, … a sense of fairness, and the other one is empathy and compassion.

Darwin wasn't just provocative in saying that we descend from the apes - he didn't go far enough. We are apes in every way, from our long arms and tailless bodies to our habits and temperament.

Perhaps it's just me, but I am wary of any persons whose belief system is the only thing standing between them and repulsive behavior.

We are territorial, power-hungry and even more brutal than chimpanzees.

The possibility that empathy resides in parts of the brain so ancient that we share them with rats should give pause to anyone comparing politicians with those poor, underestimated creatures.

We are by far the most contradictory of all primates. An animal with this much internal conflict has never lived on this earth.

Socialism cannot function, because its economic reward structure is contrary to human nature.

If you always do what interests you, at least one person is pleased

Not one drop of blood is left inside my veins that does not throb: I recognize signs of the ancient flame.

I'm excited about the ageing process. I'm more interested in women who aren't perfect. They're more compelling.

Music is like making love: either all or nothing.

When a friend speaks to me, whatever he says is interesting.

More children from the fit, less from the unfit -- that is the chief aim of birth control.

Breath is aligned with both body and mind and it alone can bring them together.

You never have to get over it you just have to get on with it.

The chain of events leading to man commenced suddenly and sharply, at a definite moment in time, in a flash of light and energy.

Why did someone fall in love with you because you are one thing and then want you to be something else?