Principle # 1 - Do the right thing. Honesty and integrity are the cornerstone for building and maintaining trust. When given the choice of two actions always ask 1st - what is the right thing to do. It is more than doing what is legally correct; one must do what is morally correct and avoid even the appearance of an impropriety.
Principle # 2 - Do your best. A strong work ethic not only leads to better results, it sets an example for others to follow while improving your sense of self worth.
Principle # 3 - Treat others with respect. Also known as the Golden Rule - Treat others as you would want them to treat you. To quote Johann Wolfgang von Goethe "You can easily judge the character of a man by how he treats those who can do nothing for him".