The First Thing To Make Clear Is

The Amount Of Knowledge Which We Can Justify From Evidence Directly Available To Us Can Never Be Large. The Overwhelming Proportion Of Our Factual Beliefs Continue Therefore To Be Held At Second Hand Through Trusting Others, And In The Great Majority Of Cases Our Trust Is Placed In The Authority Of Comparatively Few People Of Widely Acknowledged Standing.

Of Course Language Manifests A Belief Only If We Use Its Words With The Implied Acceptance Of Their Appositeness.

We Know More Than We Can Tell.

We Cannot Ultimately Specify The Grounds (either Metaphysical Or Logical Or Empirical) Upon Which We Hold That Our Knowledge Is True. Being Committed To Such Grounds, Dwelling In Them, We Are Projecting Ourselves To What We Believe To Be True From Or Through These Grounds. We Cannot Therefore See What They Are. We Cannot Look At Them Because We Are Looking With Them.

The First Thing To Make Clear Is That Scientists, Freely Making Their Own Choice Of Problems And Pursuing Them In The Light Of Their Own Personal Judgment, Are In Fact Co-operating As Members Of A Closely Knit Organization.