Understanding how DNA transmits all it knows about cancer, physics, dreaming and love will keep man searching for some time.

There is no business on a dead planet

Bring diversity back to agriculture. That's what made it work in the first place.

While the death of young men in war is unfortunate, it is no more serious than the touching of mountains and wilderness areas by humankind.

We are no longer inheriting the Earth from our parents, we are stealing it from our children.

I don't think we have very good records about what they were thinking except, as I pointed out earlier today, that they did invent our political system.

There is more inside you than you dare think.