Keep an open mind, but not so open your brain falls out.
An optimist sees a glass as half full; A pessimist sees the glass as half empty; An engineer sees the glass as twice as big as it needs to be.
Instant gratification takes too long.
Never try to argue an addict into getting clean. All you'll do is waste your time and piss off the addict.
"In the midst of great joy, do not promise anyone anything. In the midst of great anger, do not answer anyone's letter.—Chinese Proverb
Bring your ass to meetings. Your heart and brain will eventually follow.