On Quora.com is this question, which I thought I’d try to answer:

What are the lessons people most often learn too late in life?

  1. Life is short – very short.
  2. Treat others how you would like to be treated yourself.
  3. Always live true to yourself to be happy.
  4. It actually could happen to you.
  5. That nobody wants to be around somebody who complains all the time.
  6. If you don’t look after your body in the first half of your life, it will tell you all about it in the second half.
  7. That eating too many unnatural sugary/sweet foodstuffs will cause you to have a sugar addiction which is very hard to break.
  8. Everyone wants your money, and if you’re too gullible you’ll be forever poor.
  9. To not believe advertisements.  Whatever it is, it’s not really that wonderful…
  10. Don’t wait until tomorrow to do something you want to do. Do it today!
  11. Trying to control somebody else’s life will only bring sorrow.
  12. Life is what you make it.  Make your own happiness.
  13. Your children are only on loan to you.  Enjoy them while you can.
  14. That it’s okay to be alone.  You don’t have to be one half of a couple to find fulfilment.
  15. To keep fit by wearing out the soles of your shoes and not the seat of your trousers.
  16. To listen and learn by the experience of others who have already been there, done it, and got the decorated tea-towel.
  17. If you don’t get up early enough, then somebody else will get there before you.
  18. That you cannot trust anybody except yourself.
  19. That you can never really know another person.
  20. Not to believe everything you read in the newspapers.
  21. There will always be people who have more than you’ve got.
  22. No amount of plastic surgery or anti-wrinkle cream will make a 50 year old look like a 15 year old.
  23. Youth is only fleeting, and surprise surprise,  it can be quite liberating to be 50 and ‘invisible’!

Can you think of any more?