You never know what motivates you.
Be gentle to all and stern with yourself.
To know oneself, one should assert oneself.
Know or listen to those who know.
If you're going through hell, keep going.
Do not weep do not wax indignant. Understand.
Never complain and never explain.
Quality is not an act, it is a habit.
To be a good loser is to learn how to win.
Either you run the day or the day runs you.
The whole essence of good drawing - and of good thinking, perhaps - is to work a subject down to the simplest form possible and still have it believable for what it is meant to be.