Your most unhappy customers are your greatest source of learning. - Bill Gates
Success is not the key to happiness. Happiness is the key to success. If you love what you are doing, you will be successful. - Albert Schweitzer
One of the huge mistakes people make is that they try to force an interest on themselves. You don't choose your passions; your passions choose you. - Jeff Bezos
My biggest motivation? Just to keep challenging myself. I see life almost like one long University education that I never had -- everyday I'm learning something new. - Richard Branson