What material success does is provide you with the ability to concentrate on other things that really matter. And that is being able to make a difference, not only in your own life, but in other people's lives.
That tree is very old, but I never saw prettier blossoms on it than it now bears. That tree grows new wood each year. Like that apple tree, I try to grow a new little wood each year.
A person who doubts himself is like a man who would enlist in the ranks of his enemies and bear arms agains himself. He makes his failure certain by himself being the first person to be convinced of it.
I have found no greater satisfaction than achieving success through honest dealing and strict adherence to the view that, for you to gain, those you deal with should gain as well.