“They were a remarkable company, each one of them a unique person, yet characterized to some extent by his particular national type. And all were distinctively “scientists” of the period. Formerly this would have implied a rather uncritical leaning towards materialism, and an affectation of cynicism; but by now it was fashionable to profess an equally uncritical belief that all natural phenomena were manifestations of the cosmic mind. In both periods, when a man passed beyond the sphere of his own serious scientific work he chose his beliefs irresponsibly, according to his taste, much as he chose his recreation or his food.”