Some people look to religion. Others, great works of classical art.
For most of us though, life lessons are to be found in the movies, where guiding wisdom is dispensed by sages as undoubtable as Yoda, Don Corleone or Hannibal Lector.
To help you live a regret-free life, here are 16 of our favourite aphoristic nuggets from cinema history. Follow them closely, and guarantee your own happy ending.
"Don't make the same mistakes I made when I was young. Fuck a lotta women kid, not just one woman, a lotta women."
– Grandpa, Little Miss Sunshine
"Look, you've got it all wrong! You don't need to follow me, You don't need to follow anybody! You've got to think for yourselves! You're all individuals!"
– Brian, The Life of Brian
"A friend should always underestimate your virtues and an enemy overestimate your faults."
– Don Vito Corleone, The Godfather
"Think to yourself that every day is your last. The hour to which you do not look forward will come as a welcome surprise."
– Hannibal Lecter, Red Dragon
"Never tell tales about a woman. No matter how far away she is, she'll always hear you."
– Doug Coughlin, Cocktail
"With enough courage, you can do without a reputation."
– Rhett Butler, Gone With The Wind
"Worrying is like a rocking chair. It gives you something to do, but it doesn't get you anywhere."
– Van Wilder, Van Wilder: Party Liaison
"If you are good at something, don't do it for free."
– The Joker, The Dark Knight
"When it comes down to making out, whenever possible, put on side one of Led Zeppelin IV."
– Mike Damone, Fast Times at Ridgemont High
"That's what a leader's about: sacrifice. The times he's gotta sacrifice because he's gotta lead, by example. Not by fear and not by self-pity."
– Tony D'Amato, Any Given Sunday
"Y'know, I had a friend once used to collect postage stamps. He always said the one good thing about a postage stamp: it always sticks to one thing 'til it gets there, y'know."
– Tom Destry Jr, Destry Rides Again
"It's amazing how much you can get done when you've got a simple purpose guiding you through life."
– Terence McDonagh, Bad Lieutenant
"Do, or do not. There is no try."
– Yoda, Star Wars Episode V: The Empire Strikes Back
"Regret is usually a waste of time, as is gloating."
– Thomas Crown, The Thomas Crown Affair
"I don't want you to be the guy in the PG-13 movie everyone's *really* hoping makes it happen. I want you to be like the guy in the rated R movie, you know, the guy you're not sure whether or not you like yet. You're not sure where he's coming from."
– Trent, Swingers
"There are three rules that I live by: never get less than twelve hours sleep; never play cards with a guy who has the same first name as a city; and never get involved with a woman with a tattoo of a dagger on her body. Now you stick to that, and everything else is cream cheese."
– Coach Finstock, Teen Wolf