There is a much higher probability that a first-class scholar should commit an error than that an author who usually writes nonsense should have one good idea.

... All that we may ever hope to establish in historical research are facts and conditions but never causes.

It seems to me that all the evidence points to Apollonius as the founder of Greek mathematical astronomy.

No one has yet invented a system of education that is capable of ruining everyone.

There is a much higher probability that a first-class scholar should commit an error than that an author who usually writes nonsense should have one good idea.