What’s a true artist’s motivation?

“The deepest human need is the need to be appreciated.”

– William James (1842-1910) – Philosopher and psychologist

Some rhetorical questions inspired by the James quote:

Can a TRUE artist create paintings or write poems just for the sake of the art? Perhaps demonstrating his or her commitment to art by burning the works before anyone has ever seen them?

Or do we, as artists or writers, need to communicate with someone, need to have what we’ve created be appreciated?