Philosophy used to be a field that had content, but then natural philosophy became physics, and physics has only continued to make inroads. Every time theres a leap in physics, it encroaches on these areas that philosophers have carefully sequestered away to themselves, and so then you have this natural resentment on the part of philosophers.

The root cause of the looming energy problem - and the key to easing environmental, economic and religious tensions while improving public health - is to address the unending, and unequal, growth of the human population. And the one proven way to reduce fertility rates is to empower young women by educating them.

There are a lot of legislators who are afraid that kids will learn science and lose their faith.

Most people don't base their morality on religion in spite what they say. If you ask people, "If you didn't believe in God, would you go out and kill your neighbour?" Most people will say, "No".

Religious leaders need to be held accountable for their ideas.

In 5 billion years, the expansion of the universe will have progressed to the point where all other galaxies will have receded beyond detection.

It really is the most poetic thing I know about physics: you are all stardust.