A fool despises good counsel, but a wise man takes it to heart.
Learn as though you would never be able to master it; hold it as though you would be in fear of losing it.
Gravity is only the bark of wisdom's tree, but it preserves it.
To know everything is to know nothing, but to know nothing is to know everything.
Don't be concerned that you have no position; be concerned how you may fit yourself to occupy one. .
Signs and symbols rule the world, not words nor laws.