"If A equals success, then the formula is A = X + Y + Z. X is work. Y is play. Z is keep your mouth shut." (Albert Einstein).
Judge your success by what you had to give up in order to get it.
The path to success is to take massive, determined action. (Anthony Robbins).
The only honest measure of your success is what you are doing compared to your true potential. (Paul J. Meyer).
To follow, without halt, one aim: there's the secret of success. (Anna Pavlova).
The secret of success is to know something nobody else knows. (Aristotle Onassis).