Otto E. Neugebauer quotes:

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

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

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

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.