Science only means knowledge; and for [Greek] ancients it did only mean knowledge. Thus the favorite science of the Greeks was Astronomy, because it was as abstract as Algebra. ... We may say that the great Greek ideal was to have no use for useful things. The Slave was he who learned useful things; the Freeman was he who learned useless things. This still remains the ideal of many noble men of science, in the sense they do desire truth as the great Greeks desired it; and their attitude is an external protest against vulgarity of utilitarianism.
Sir Hiram Maxim is a genuine and typical example of the man of science, romantic, excitable, full of real but somewhat obvious poetry, a little hazy in logic and philosophy, but full of hearty enthusiasm and an honorable simplicity. He is, as he expresses it, "an old and trained engineer," and is like all of the old and trained engineers I have happened to come across, a man who indemnifies himself for the superhuman or inhuman concentration required for physical science by a vague and dangerous romanticism about everything else.
The center of every man's existence is a dream. Death, disease, insanity, are merely material accidents, like a toothache or a twisted ankle. That these brutal forces always besiege and often capture the citadel does not prove that they are the citadel.
As an explanation of the world materialism has a sort of insane simplicity. It has the quality of a madman's arguments; we have at once the sense of it covering everything and the sense of it leaving everything out.