Don't let the fear of losing be greater than the excitement of winning.

Robert Kiyosaki

Don't wait. The time will never be just right.

Mark Twain

Don't let the best you have done so far be the standard for the rest of your life.

Gustavus F. Swift

The critics are always right. The only way you shut them up is by winning.

Chuck Noll

Let him who would enjoy a good future waste none of his present.

Roger Babson

Success comes from curiosity, concentration, perseverance and self-criticism.

Albert Einstein