You're only as good as the people you hire.
You must perfect every fundamental of your business if you expect it to perform well.
Luck is a dividend of sweat.
There is absolutely nothing special about walking on a rope stretched along the ground. Where there is no risk, there can be no pride in a deed accomplished, and therefore no happiness.
In business for yourself, but not by yourself.
Happiness is not a tangible thing, it's a byproduct - a byproduct of achievement.