If you think you can do it, you can.
What you do today can improve all your tomorrows.
Do not weep do not wax indignant. Understand.
If you're going through hell, keep going.
Problems are not stop signs, they are guidelines.
Quality is not an act, it is a habit.
To be a good loser is to learn how to win.
If you can dream it, you can do it.
Things do not happen. Things are made to happen.
By failing to prepare, you are preparing to fail.
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.