Success is not final, failure is not fatal: it is the courage to continue that counts. - Winston Churchill

Believe you can and you're halfway there. - Theodore Roosevelt

Success is not how high you have climbed, but how you make a positive difference to the world. - Roy T. Bennett

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. - Steve Jobs

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