It is a good rule in life never to apologize. The right sort of people do not want apologies, and the wrong sort take a mean advantage of them.
A smiling face is half the meal.
Fig Newton: The force required to accelerate a fig 39.37 inches per sec.
Read over your compositions, and wherever you meet with a passage which you think is particularly fine, strike it out.
The knowledge of the world is only to be acquired in the world, and not in a closet.
From the moment I picked up your book until I laid it down, I was convulsed with laughter. Some day I intend reading it.
Beginning today, treat everyone you meet as if they were going to be dead by midnight. Extend them all the care, kindness and understanding you can muster. Your life will never be the same again.