A few hard-learned business lessons from decades of experience:

1. Small profits come from hard work; big money comes from courage.

2. If you can't let go of your pride, you'll never make big money.

3. If you don't understand human nature, you'll never make big money.

4. The logic of studying and doing business are two different things.

5. Those who arrive early get the meat; those who come late don't even get the soup.

6. Make your fortune quietly; always keep a low profile.

7. Business is business—relationships matter less than cash on the table.

8. Couples running a business shouldn't argue; arguing means losing money.