One of the most memorable scenes in the movie City Slickers is when Curly, the crusty ranch foreman (played by Jack Palance) explains to Mitch, one of the city dudes (played by Billy Crystal) what really matters most in life. Turning toward the inquisitive greenhorn, Curly holds up an index finger. “This,” he says. “Your finger?” Mitch asks. Curly goes on to explain that the secret of life is knowing what your “one thing” is: the thing that matters most—that lies at the center of everything else you do and are. “So,” Mitch asks, “what is the one thing?” “That’s what you gotta figure out,” Curly replies.