1. Most friendships do not last forever. Best friends become friends, friends become acquaintances, and acquaintances become strangers.
3. It is a cruel world, and everyone is looking out only for themselves. Never trust someone endlessly.
6. If you are successful, you will have more friends. Those friends will not think twice before ditching you if you face failures.
7. People are always going to judge you, no matter what you do.
15. Nothing in life is permanent. So we should enjoy every experience while it lasts.