In my view, our approach to global warming exemplifies everything that is wrong with our approach to the environment. We are basing our decisions on speculation, not evidence. Proponents are pressing their views with more PR than scientific data. Indeed, we have allowed the whole issue to be politicized-red vs blue, Republican vs Democrat. This is in my view absurd. Data aren't political. Data are data. Politics leads you in the direction of a belief. Data, if you follow them, lead you to truth.

Nobody smart knows what they want to do until they get into their twenties or thirties.

For our own species, evolution occurs mostly through our behavior. We innovate new behavior to adapt.

Because the history of evolution is that life escapes all barriers. Life breaks free. Life expands to new territories. Painfully, perhaps even dangerously. But life finds a way.

Nobody dares to solve the problems-because the solution might contradict your philosophy, and for most people clinging to beliefs is more important than succeeding in the world.

The past history of human belief is a cautionary tale. We have killed thousands of our fellow human beings because we believed they had signed a contract with the devil, and had become witches. We still kill more than a thousand people each year for witchcraft. In my view, there is only one hope for humankind to emerge from what Carl Sagan called "the demon-haunted world" of our past. That hope is science.

...scientific power is like inherited wealth: attained without discipline. You read what others have done, and you take the next step. You can do it very young...there is no mastery, old scientists are ignored. There is no humility before nature...Its a form of inherited wealth. And you know what assholes congenitally rich people are.