You never know what motivates you.
Go for it now. The future is promised to no one.
Be thine own palace, or the world's thy jail.
The wise does at once what the fool does at last.
If you think you can do it, you can.
Without hard work, nothing grows but weeds.
Leap, and the net will appear.
By failing to prepare, you are preparing to fail.
To be a good loser is to learn how to win.
Expect problems and eat them for breakfast.
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.