Jim Rohn has been called the Will Rogers of American business, here's a few quotes from Jim:
Success/Failure by Jim Rohn

Success is not to be pursued; it is to be attracted by the person you become.

Failure is not a single, cataclysmic event. You don't fail overnight. Instead, failure is a few errors in judgment, repeated every day.

Don't take the casual approach to life. Casualness leads to casualties.

Success is the study of the obvious. Everyone should take Obvious I and Obvious II in school.

It's too bad failures don't give seminars. Wouldn't that be valuable? If you meet a guy who has messed up his life for forty years, you've just got to say, "John, if I bring my journal and promise to take good notes, would you spend a day with me?"

Success is not so much what we have as it is what we are.