In the classic Billy Crystal movie “City Slickers,” three long time friends face middle age. In their middle-age crisis they find themselves losing their focus and in danger of losing their families.

To reignite the fire in their lives the guys sign up as “cowboys,” helping a dude ranch move its herd of cattle from high in the hills down to the lower valley. “Curly,” the grizzled old cowboy who leads them, seems to be the toughest, canniest, wisest person they have ever met. Billy Crystal asks the usually tight-lipped cowpoke what his secret is. What makes his life so strong and centered and sure. Curly smiles, raises his grubby, gloved index finger and proclaims, “It is just one thing,” then he rides away.

Billy’s character spends the rest of the movie frantically trying to figure out w…