If you've got a talent, protect it.
Always desire to learn something useful.
After a storm comes a calm.
Leap, and the net will appear.
To know oneself, one should assert oneself.
I can, therefore I am.
Quality is not an act, it is a habit.
Problems are not stop signs, they are guidelines.
It's always too early to quit.
Well done is better than well said.
That attitude does not exist so much today, but in those days there was a very sharp distinction between basic physics and applied physics. Columbia did not deal with applied physics.