A strong, positive self-image is the best possible preparation for success.
Adversity builds muscle. Adversity creates strength. Adversity, it turns out, is preparation for success.
Preparation clears a pathway for success.
What people call success is only preparation for the next failure.
Preparation is the be-all of good trial work. Everything else - felicity of expression, improvisational brilliance - is a satellite around the sun. Thorough preparation is that sun.
Success consists of going from failure to failure without loss of enthusiasm.