Every artist must at least occasionally have moments of doubt about whether work being created will stand the test of time or whether it will even be appreciated by other people. It is inevitable, I suppose, given that most creative ventures are fairly solitary. You work away at your desk, your potter's wheel, your easel, your sculpture table, your musical score, your ballet bar or whatever the work might require. Your vision and your passion, you hope, carry you forward to creating something that is good, worthwhile, meaningful to others. And something that will stand the test of time.