The career of a young theoretical physicist consis...

The career of a young theoretical physicist consists of treating the harmonic oscillator in ever-increasing levels of abstraction.

Sidney Coleman

Effort only fully releases its reward after a person refuses to quit.

Never complain and never explain.

A good plan violently executed now is better than a perfect plan executed next week.

George S. Patton

Problems are not stop signs, they are guidelines.

Robert Schuller

Never give up, for that is just the place and time that the tide will turn.

Harriet Beecher Stowe

The career of a young ...