All men are our brothers. As far as the discovery of the truth is concerned, they are all working for the same purpose; they may be separated by the accidents of space and time, and by the exigencies of race, religion, nationality, and other groupings; from the point of view of eternity they are working together.

Preface - A History of Science Vol.2 Hellenistic Science and Culture in the Last Three Centuries B.C. (1959)