"There is no 'real' understanding. Understanding is relative. It is like
temperature, it may be five degrees, ten degrees, fifteen degrees. You see
why ordinary language is no good and why we have to study a different
language? Because in ordinary language all words are taken as absolutes.
In reality there are differnt degrees of understanding. As I said, we can
understand better, and still better. Then if we want to understand still
better, we must change our being..."
"You see, definitions can seldom help and, as a matter of fact, we can
have very few definitions. This conviction that in order to understand
something it is necessary to define it is quite wrong, because most things
we cannot define, and the few that we can, we can define only relatively
with the help of other things. So, among an enormous quantity of things
we cannot define at all there are small islands of things we can define."
"The Fourth Way" by P.D.Ouspensky, Vintage Books Edition, March 1971, p.134-135