What distinguishes the true artist from not present?

[Buscador]

Сообщение от Peter

This artist is the one who has a dream, who did not break down under the pressure of life circumstances who are not sold his soul to the golden calf

A good proposition, but it fits rather good man than a good artist. You can recall a number of stories, when great artists, musicians, actors ... and broke, and sold ... But their works live on and remain in the stories they (the work), but not the unseemly facts of life ...
For me a good artist - is primarily a specialist, speaks perfect their profession (nobody argues. That is a profession). Here I see an objective factor. And then flights of fantasy and the like - as a subjective factor. Good - one that can do well, what should I do a professional.