It's always too early to quit.

Know or listen to those who know.

Always desire to learn something useful.

Do not weep do not wax indignant. Understand.

If you're going through hell, keep going.

The most effective way to do it, is to do it.

If you've got a talent, protect it.

Quality is not an act, it is a habit.

Be gentle to all and stern with yourself.