Look closely at nature. Every species is a masterpiece, exquisitely adapted to the particular environment in which it has survived. Who are we to destroy or even diminish biodiversity?

We ought to recognize that religious strife is not the consequence of differences among people. It's about conflicts between creation stories.

Secular humanists can sit around and talk about their love of humanity, but it doesn't stack up against a two-millennium-old funeral high mass.

Every kid has a bug period... I never grew out of mine.

The commitment must be much deeper - to let no species knowingly die; to take all reasonable action to protect every species and race in perpetuity.

The search for knowledge is in our genes. It was put there by our distant ancestors who spread across the world, and it's never going to be quenched.

The two major challenges for the 21st century are to improve the economic situation of the majority and save as much of the planet as we can.