Viagra does have a physiological effect, but it doesn't make women feel aroused. Nowadays, researchers are looking at drugs that affect the central nervous system rather than blood flow to the genitals.

The broader the topic, the easier it is, not only to fill a book, but to set the bar pretty high for really great stuff.

You are a person and then you cease to be a person, and a cadaver takes your place.

I dont fear death so much as I fear its prologues: loneliness, decrepitude, pain, debilitation, depression, senility. After a few years of those, I imagine death presents like a holiday at the beach.

To me, NASA is kind of the magical kingdom. I was sort of a geek, and you go there, and there are just these wondrously strange things and people.

Wisdom comes with age, but keep it to yourself.

In my whole life, I've never vomited from seeing something disgusting. Does it really even happen, outside of movies and TV? I believe it may be a myth.