I decided to sell my drawings. However, I didn't want people to buy my drawings because the professor of physics isn't supposed to be able to draw - isn't that wonderful - so I made up a false name.

A squirrel dying in front of your house may be more relevant to your interests right now than people dying in Africa.

Man, alone, has the power to transform his thoughts into physical reality; man, alone, can dream and make his dreams come true.

The U.S. immigration laws are bad - really, really bad. I'd say treatment of immigrants is one of the greatest injustices done in our government's name.

The math is dead simple: it seems that the frequency of planets able to support life is roughly one percent. In other words, a billion or more such worlds exist in our galaxy alone. That's a lot of acreage, and it takes industrial-strength credulity to believe it's all bleakly barren.