Be gentle to all and stern with yourself.
To be a good loser is to learn how to win.
Do not weep do not wax indignant. Understand.
Be thine own palace, or the world's thy jail.
By failing to prepare, you are preparing to fail.
Well done is better than well said.
It's always too early to quit.
Go for it now. The future is promised to no one.
Expect problems and eat them for breakfast.
Who seeks shall find.
They are imaginary characters. But perhaps not solely the products of my imagination, since there are some aspects of the characters that relate to my own experience of a wide variety of people.