By failing to prepare, you are preparing to fail.
If you've got a talent, protect it.
If you're going through hell, keep going.
Well done is better than well said.
To know oneself, one should assert oneself.
Be kind whenever possible. It is always possible.
Who seeks shall find.
It's always too early to quit.
Either you run the day or the day runs you.
Be gentle to all and stern with yourself.
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.