Do not weep do not wax indignant. Understand.
Begin to be now what you will be hereafter.
Always desire to learn something useful.
Well done is better than well said.
The wise does at once what the fool does at last.
Be gentle to all and stern with yourself.
If you think you can do it, you can.
If you can dream it, you can do it.
Problems are not stop signs, they are guidelines.
What you do today can improve all your tomorrows.
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.