“Knowledge is more a matter of learning than of the exercise of absolute judgment. Learning requires time, and in time the situation dealt with, as well as the learner, undergoes change.”

For me, as a stand alone statement, there is not enough here to rate. Definition of words and relationships on concepts would have to precede the quote for an intelligent comment; for, against, or otherwise. By way of example: what is the definition and relationship of knowledge, learning, and absolute judgment; and, how does a situation dealt with (a past event) change with time (a future event)?

He is intimating here that life and learning are tentative things, and I whole heartily agree. Those absolutists, those who say for example "the US is a Republic not a democracy" do not understand, do not comprehend, and are absolutist in their judgements. When you are absolutist it is impossible to learn or think.

Last week, I went to my phone provider with a problem. I was told that what was happening to my phone was not possible. My response was that we should never define knowledge by the limitations that have been placed on our level of learning. Knowledge is infinite but judgement is subjective. Michael A. Church

I wonder what he would have to say about the ignorance of today's average high school student?

A statement in the obvious, sometimes one can share more "knowledge" than needed. Keep your enemy in the dark, not "knowing" which way is up. 

If it's connected with life it grows, and with that I would like to correct a quote by the Robin Williams' character Mr John Keating that I presented incorrectly.  The quote moves more along the lines of: "No matter what people tell you, words and ideas can change the world." Sorry. Movie, Dead Poet Society.