The least lack of discipline starts to erode our self-esteem.
You can cut down a tree with a hammer, but it takes about 30 days. If you trade the hammer for an ax, you can cut it down in about 30 minutes. The difference between 30 days and 30 minutes is skills.
The greatest source of unhappiness comes from inside.
The greatest gift you can give someone is your personal development.
Wealth is not a matter of intelligence, it's a matter of inspiration.
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?'