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2 total sentences available.
In the theory of knowledge, as in every other branch of science, we must think dialectically, that is, we must not regard our knowledge as ready-made and unalterable, but must determine how knowledge emerges from ignorance, how incomplete, inexact knowledge becomes more complete and more exact.
Source: tatoeba (13056969)
At the same time, we were cognisant that careful scholars should never solely rely on their own impressionistic observations, and, that our own impressions were inexact and not capable of being quantified.
Source: wiktionary