Know or listen to those who know.
It's always too early to quit.
To be a good loser is to learn how to win.
Quality is not an act, it is a habit.
The secret of getting ahead is getting started.
Be thine own palace, or the world's thy jail.
Always desire to learn something useful.
Be gentle to all and stern with yourself.
If you're going through hell, keep going.
Problems are not stop signs, they are guidelines.
As a system of philosophy it is not like the Tower of Babel, so daring its high aim as to seek a shelter against God's anger but it is like a pyramid poised on its apex.