Considering something in some respects while
This is a very important human
cognitive ability, and perhaps also a
restriction, in that for humans there may be much they can only
understand in an abstract way, if only because these things are or may
be too complicated to be dealt with by human cognitive abilities in
their full complexities.
There are many ways to abstract things,
both perceptually, e.g. by using attention, and linguistically, by
describing and naming things in some ways, but not in others.