Variant: Ask yourself three questions and you will know who you are. Ask 'What do you believe in? What do you hope for? But most important - ask what do you love?
Source: The Bronze Horseman (2001)
“If you want to be successful, it's just this simple. Know what you are doing. Love what you are doing. And believe in what you are doing.”
Help us to complete the source, original and additional information
Will Rogers 121
American humorist and entertainer 1879–1935Related quotes

Variant: Success is not the key to happiness. Happiness is the key to success. If you love what you are doing, you will be successful.

“Do you want to be what you are or do you want to be what continually changes what you are?”
2017 Maps of Meaning 11: The Flood and the Tower. https://www.youtube.com/watch?v=T4fjSrVCDvA
Maps of Meaning
“It's important to know what you don't want, but it's vital to know what you DO want.”
Source: Life, the Truth, and Being Free (2010), p. 152

“Character is doing what you don't want to do but know you should do.”
Variant: Do what you don’t want to do to get what you want to get.

“You just do these things that you fall in love with, and you never know what's going to happen.”
The Circle, p. 21
Catching the Big Fish (2006)
Context: I like the saying "The world is as you are." And I think films are as you are. That's why, although the frames of a film are always the same — the same number, in the same sequence, with the same sounds — every screening is different. The difference is sometimes subtle but it's there. It depends on the audience. There is a circle that goes from the audience to the film and back. Each person is looking and thinking and feeling and coming up with his or her own sense of things. And it's probably different from what I fell in love with.
So you don’t know how it's going to hit people. But if you thought about how it's going to hit people, or if it's going to hurt someone, or if it's going to do this or do that, then you would have to stop making films. You just do these things that you fall in love with, and you never know what's going to happen.