No species ... possesses a purpose beyond the imperatives created by genetic history ... The human mind is a device for survival and reproduction, and reason is just one of its various techniques.

The cutting of primeval forest and other disasters, fueled by the demands of growing human populations, are the overriding threat to biological diversity everywhere.

It was inspiring to learn of the new Bachelor of Environmental Studies Program, and I congratulate you for it. Singapore is geographically in the right central position for an influence in Asia and Australia, and NUS has the reputation and academic strength to make it effective.

I like what Abba Eban once said during the 1967 war. He said, "When all else fails, men turn to reason."

Every major religion today is a winner in the Darwinian struggle waged among cultures, and none ever flourished by tolerating its rivals.

We don't need to clear the 4 to 6 percent of the Earth's surface remaining in tropical rain forests, with most of the animal and plant species living there.

Thirty trillion dollars worth of services, scot-free to humanity, every year.