One must beware of a formula good for everything, that will serve to interpret the other arts as well as reality, and that instead of creating will o… - Georges Braque

I felt dissatisfied with traditional perspective. Merely a mechanical process, this perspective never conveys things in full. It starts from one viewpoint and never gets away from it. But the viewpoint is quite unimportant. It is though someone were to draw profiles all his life, leading people to think that a man has only one eye.. .When one got to thinking like that, everything changed, you cannot imagine how much!

What particularly attracted me [in his painting 'Still-life with Musical instruments', 1908 – 1909].. ..was the materialization of this new space that I felt to be in the offing. So I began to concentrate on still-life's, because in the still-life you have a tactile, I might almost say a manual space.. .This answered to the hankering I have always had to touch things and not merely see them. It was this space that particularly attracted me, for this was the first concern of Cubism, the investigation of space.. ..In tactile space you measure the distance separating you from the object, whereas in visual space you measure the distance separating things from each other. This is what led me, long ago, from landscape to still-life.

I started to introduce letters into my pictures [his first collage art]. These were forms which could not be deformed, because, being two-dimensional, they existed outside three-dimensional space; their inclusion in a picture allowed a distinction to be made between objects which were situated in space and those which belonged outside space [the letters].