Para-Gram by Parmahansa Yogananda

First, carefully choose your work. If you have not yet found something that satisfies you, continue to search for it. You must like your vocation if you expect to succeed. Each day try to accomplish something, large or small, that you had always thought you could not accomplish. When you make up your mind to do something, do not give up. Success attained through determination and right action brings you more than material wealth; it gives the joy of accomplishment.

see: podcast Law of Success