When the Wizard of Menlo Park called invention 10 percent inspiration and 90 percent perspiration, he was speaking not only about the creative act of inventing but also about the whole inventive process needed to bring more than intellectual success. Edison warned against discouragement during the perspiration phase in the following way, reminding us that we get things to work by the successive removal of bugs:
Genius? Nothing! Sticking to it is the genius! Any other bright-minded fellow can accomplish just as much of he will stick like hell and remember nothing that's any good works by itself. You've got to make the damn thing work!...I failed my way to success.
It is true that [the artist], like everybody else, derives remuneration from his work (though not, strictly speaking, profit in the financial sense, of the word, since what he invests in his work is not money but time and skill, whose returns cannot be calculated in percentages). The remuneration is frequently beyond the amount necessary to enable him to go on working. What is remarkable about him is the way in which he commonly employs the escape-from-work which the extra remuneration allows him. If he is genuinely an artist, you will find him using his escape-from-work in order to do what he calls “my own work”, and nine times out of ten, this means the same work (i.e. the exercise of his art) that he does for money. The peculiar charm of his escape is that he is relieved, not from the work but from the money.
What distinguishes him here from the man who works to live is, I think, his desire to see the fulfilment of the work.