On Ego
Have a check built in to your thinking process so that the second you think you are smarter than anyone else, a red flag shoots up. The moment you realise that whatever you think you achieved over anyone else was just a random occurrence because of infinite other things that fell in to place starting from or even before the Big Bang and that your current situation is so fragile that just one wrong cell division out of about 4.2 million that occur a second that goes unnoticed by the body's immune system could mean the end of you, all ego should vaporise.