Always desire to learn something useful.
I can, therefore I am.
Begin to be now what you will be hereafter.
The dog that trots about finds a bone.
If you're going through hell, keep going.
The wise does at once what the fool does at last.
Well done is better than well said.
What you do today can improve all your tomorrows.
Quality is not an act, it is a habit.
You never know what motivates 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.