Before the discovery of agriculture mankind was everywhere so divided, the size of each group being determined by the natural fertility of its locality.

There are the further difficulties of building a population out of a diversity of races, each at a different stage of cultural evolution, some in need of restraint, many in need of protection; everywhere a bewildering Babel of tongues.

A drunkard is one thing, and a temperate man is quite another.

In every man there is an instinctive and passionate reaction if his person or liberty is attacked.

I wasn't with Joseph, but I believe him. My faith did not come to me through science, and I will not permit so-called science to destroy it.

It was at this moment that I wrote my first important paper in theoretical physics. I was 32 years old, 5 years beyond the alleged age of senility for theorists.

I'm a closeted nerd. I studied Richard Dawkins. I watched every lecture. He's sort of the leading scientific atheist of our time. He's very provocative. His whole thing is science over spirituality.

I would say the connection between art and science is very tenuous for me. It's just that I'm interested in both. I don't think that my interest in art affects the kind of science that I do.