Page:Russell - The Problems of Philosophy, 1912.djvu/130

From Wikisource
Jump to navigation Jump to search
This page has been validated.
126
THE PROBLEMS OF PHILOSOPHY

should be such knowledge? And more particularly, how can there be knowledge of general propositions in cases where we have not examined all the instances, and indeed never can examine them all, because their number is infinite? These questions, which were first brought prominently forward by the German philosopher Kant (1724–1804), are very difficult, and historically very important.