There is a famous movie exchange in the 1991 Billy Crystal cowboy film ‘City Slickers’ where Jack Palance, playing Curly, the grizzled cowboy, shares with the wise cracking Crystal the secret to life.
Curly: Do you know what the secret of life is?
[holds up one finger] This.
Mitch: Your finger?
Curly: One thing. Just one thing. You stick to that and the rest don't mean s***.
Mitch: But, what is the "one thing?"
Curly: That's what you have to find out.