Life Truths ???

Are there certain truths that are absolutes in life? I recently saw the list below. I wish I could remember where so I could give credit where it is due. Feel free to add any of your own "life truths" in the comments.

1. Don't worry about the future; or worry, but know that worrying is as effective as trying to solve an algebra equation by chewing bubblegum. The real troubles in your life are apt to be things that never crossed your worried mind; the kind that blindside you at 4pm on some idle Tuesday.
2. Don't be reckless with other people's hearts, don't put up with people who are reckless with yours.
3. Don't waste your time on jealousy; sometimes you're ahead, sometimes you're behind…the race is long, and in the end, it's only with yourself.
4. Enjoy the power and beauty of your youth; oh never mind; you will not understand the power and beauty of your youth until they have faded. But trust me, in 20 years you'll look back at photos of yourself and recall in a way you can't grasp now how much possibility lay before you and how fabulous you really looked.Enjoy your body, use it every way you can…don't be afraid of it, or what other people think of it, it's the greatest instrument you'll ever own.
5. Dance…even if you have nowhere to do it but in your own living room.
6. Get to know your parents, you never know when they'll be gone for good.
7. Be nice to your siblings; they are the best link to your past and the people most likely to stick with you in the future.
8. Work hard to bridge the gaps in geography and lifestyle because the older you get, the more you need the people you knew when you were young.
9. Live in New York City once, but leave before it makes you hard; live in Northern California once, but leave before it makes you soft.
10. Travel.
11. Don't expect anyone else to support you. Maybe you have a trust fund, maybe you have a wealthy spouse; but you never know when either one might run out.
12. Live in the moment, for tomorrow you will wish for today.