There is always a little more toothpaste in the tube. Think about it.

From an evolutionary point of view, sex is really just a reward mechanism to encourage us to pass on our genetic material.

My first rule of consumerism is never to buy anything you can't make your children carry.

There is the odd exception, like Albert Einstein, but as a breed, scientists tend not be very good at presenting themselves.

I can't fix the world. If you want to make a difference in life, you have to direct your energies in a focused way.

It was an odd situation. For a century and a half, men got rid of their own hair, which was perfectly comfortable, and instead covered their heads with something foreign and uncomfortable. Very often it was actually their own hair made into a wig. People who couldn't afford wigs tried to make their hair look like a wig.

For anyone of a rational disposition, fashion is often nearly impossible to fathom. Throughout many periods of history – perhaps most – it can seem as if the whole impulse of fashion has been to look maximally ridiculous. If one could be maximally uncomfortable as well, the triumph was all the greater.