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
As the crow...I did not lose myself all at once. I rubbed out my face...The undertaking of a new action brings new strength...I try to celebrate all the holidays...The Superior Man is aware of Righteousness...Always remember that striving and struggle precede...