Know and believe in yourself and what others think won't disturb you.
If at first you don't succeed, try hard work.
In many lines of wok, it isn't how much you do that counts, but how much you do well and how often you decide right.
No man is a failure who is enjoying life.
Success in business hinges mostly on the ability to get the important things done.
The rule for every worthwhile man is that no serious job ever shall receive less than his best thought and effort.