The past is hidden somewhere outside the realm, beyond the reach of intellect, in some material object (in the sensation which that material object will give us) which we do not suspect.
The behavior of the whole cannot be predicted from the behavior of its parts taken separately.
I'm interested in the idea of something being art because someone says it is.
The purpose of abstraction is not to be vague, but to create a new semantic level in which one can be absolutely precise.