Without hard work, nothing grows but weeds.
Be kind whenever possible. It is always possible.
After a storm comes a calm.
Things do not happen. Things are made to happen.
Leap, and the net will appear.
Be thine own palace, or the world's thy jail.
If you've got a talent, protect it.
If you think you can do it, you can.
What you do today can improve all your tomorrows.
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.