Art is vice. You don't marry it legitimately, you rape it.
Realism is more important than the sentiment of the picture.
People call me the painter of dancers, but I really wish to capture movement itself.
Make a drawing. Start it all over again, trace it. Start it and trace it again.
Make people's portraits in familiar and typical attitudes.
A painting is above all a product of the artist's imagination, it must never be a copy. If, at a later stage, he wants to add two or three touches from nature, of course it doesn't spoil anything.