What golden advice did you learn in your life?

What golden advice did you learn in your life?
The hottest place in hell is reserved for those who deliberately arouse someone's love without the intention of loving them back.

Pretty people aren't always beautiful, and beautiful people aren't always pretty. I hope you know the difference.
You're not really rich until you have something that money can't buy.
The more you can talk about uncomfortable things with someone, the more comfortable you're with them
If you don't have the patience and empathy to upbring a child, please don't have one. Better listen to the taunts of the society than spoil a life.
Please respect yourself. Maybe you don't score the highest in your class, or maybe you're not great at sports, but whatever you are, respect that.
The less you react, the more stable you become. Yes, chemistry works in real life situations too :)
Don't judge the choices someone made if you don't know the options they had to choose from.
Always check the gas burner, water taps and electric switches before leaving from home.
I read this one somewhere- The best way to be safe is to be dangerous.