My Dad read this to me a few times when I was a child/teenager...typically when he knew I was about to lose my shit on another kid.
Remaining strong AND calm is part of being a man.
I pull this poem out whenever I forget that (often these days):
If -- by Rudyard Kipling
Being a man among childish adults can be very satisfying. I can say this here: size and strength help with the overall effect.