Every mathematician worthy of the name has experienced . . . the state of lucid exaltation in which one thought succeeds another as if miraculously . . . this feeling may last for hours at a time, even for days. Once you have experienced it, you are eager to repeat it but unable to do it at will, unless perhaps by dogged work. . . .
The thrill of creation which we experience which we experience when we see a masterpiece is not unlike the feeling of the artist who created it; such a work is a fragment of the world which he has annexed and which belongs to him alone.
We have come to think of art and work as incompatible, or at least independent categories and have for the first time in history created an industry without art.
It is the natural instinct of a child to work from within outwards; "First I think, and then I draw my think." What wasted efforts we make to teach the child to stop thinking, and only to observe!