1. Marry not for your love for her nor for her sex. Marry if she 1) loves you without qualifications or limitations; and 2) will bring acceptance of your means and capabilities. Appraise what she will bring to the union - good health, sharp mind, hard worker ? if you fail to marry as a young man, have a pre-nuptial for any later-in-life marriage. Today, marriage is not a pre-condition to anything. Tread with reservation.
2. Treat your body gently, for you have only one. Less than moderate drink, exposure, demands. Low salt, no smoke. Watch your weight - your eating habits will catch up to you when you're older.
3. Work diligently. If you must work for another, then work for yourself at night. There is little profit to be made from working for another.
4. Choose your friends wisely, for it is by them, that you will be judged. Once chosen, hold them close. They will be your support, more than family, through the tough times.
5. Spend with hesitancy. Credit was introduced to serve the impulse buyer and for the benefit of the vendor. Finance real estate and that which will buy assets that can be used to make more money. Everything else - be a cash buyer.
6. Borrowing from Shakespeare - "Neither a lender nor a borrower be." Lend to a friend and there is danger to lose both your money, and your friend.