Abstraction is the most definite form for the intangible thing in the artist that can be clarified in paint.
Abstraction is, in art, to some degree necessary in that the painter can and must abstract from many details in creating his painting. Every good composition is above all a work of abstraction.
Abstraction is itself an abstract word and has no single meaning. . . Every word in our language is abstract, because it represents something else.
Abstraction is impossible, practically speaking. Even an abstract form has to have a likeness.

Abstraction is a methodological intervention which, after having been done, requires that we must in the end replace what we have taken away if we are to understand it.
Abstraction is a faculty that operated unconsciously in past times, when one lived in contact with nature. Now in our denaturalized age abstraction becomes an effort.