Nothing Happens Til Something Moves.

The Pursuit Of Knowledge Is More Valuable Than Its Possession.

Whether Or Not You Can Observe A Thing Depends Upon The Theory You Use. It Is The Theory Which Decides What Can Be Observed.

Success = 1 Part Work + 1 Part Play + 1 Part Keep Your Mouth Shut

If A Is A Success In Life, Then A Equals X Plus Y Plus Z. Work Is X; Y Is Play; And Z Is Keeping Your Mouth Shut

If I Give You A Pfennig, You Will Be One Pfennig Richer And I'll Be One Pfennig Poorer. But If I Give You An Idea, You Will Have A New Idea, But I Shall Still Have It Too.