Success is not how high you have climbed, but how you make a positive difference to the world.
Success is not the key to happiness. Happiness is the key to success. If you love what you are doing, you will be successful.
The only way to do great work is to love what you do. If you haven't found it yet, keep looking. Don't settle.
Success is not final, failure is not fatal: It is the courage to continue that counts.