Drawing is not what you see but what you must make others see.
C'est vrai. Voilá quelqu'un qui sent comme moi. (It is true. There is someone who feels as I do).
The fascinating thing, is not to show the source of light, but the effect of light.
Work a great deal at evening effects, lamplight, candlelight, etc. The intriguing thing is not to show the source of the light but the effect of the lighting.
Drawing is not the same as form, it is a way of seeing form.
Make people's portraits in familiar and typical attitudes.