To know oneself, one should assert oneself.
The most effective way to do it, is to do it.
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.
The dog that trots about finds a bone.
Always desire to learn something useful.
It's always too early to quit.
Never complain and never explain.
What you do today can improve all your tomorrows.
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.