Stephen Hawking
I believe alien life is quite common in the universe, although intelligent life is less so. Some say it has yet to appear on planet Earth.
More quotes and aphorisms
A lot of truth is said in jest...Be spectacularly great at what you do...A hero is no braver than an ordinary man...The more I expect, the more unhappy I am going to be...We have all kinds of limitations as human beings...There is frequently more to be learned from...