If I don't have red, I use blue.
Don't waste your youth growing up.
There's nothing more difficult than a line.
It is the object which aroused the artist, stimulated his ideas and set of his emotions. These ideas and emotions will be imprisoned in his work for good.
Art sweeps the everyday dust from your soul.
Almost every evening, either I went to [Georges] Braque's studio or Braque came to mine. Each of us had to see what the other had done during the day. We criticized each other's work. A canvas wasn't finished unless both of us felt it was.