"FACTS ARE TO SOME EXTENT CONVENTIONAL. Facts change, we say. We mean that some propositions that are considered to be facts in one epoch are no longer considered to be facts in another. **Insofar as facts are “true” and represent reality, they cannot change, of course, because truth, strictly speaking, does not change, nor does reality**. But not all propositions that we take to be true are really true; and we must concede that almost any given proposition that we take to be true can be falsified by more patient or more accurate observation and investigation." ([Location 2714](https://readwise.io/to_kindle?action=open&asin=B004PYDAPE&location=2714) --- **Tags** -- [[quotes]], [[epistomelogical-challenge]], [[knowledge-vs-opinions]] **Source** -- [[20250103084100 - B - How to Read a Book]]