“The revolutions of thought which shape the basic outlook of an age are not disseminated through text-books- they spread like epidemics, through contamination by invisible agents and innocent germ carriers, by the most varied forms of contact, or simply by breathing the common air.”

“The revolutions of thought which shape the basic outlook of an age are not disseminated through text-books- they spread like epidemics, through contamination by invisible agents and innocent germ carriers, by the most varied forms of contact, or simply by breathing the common air.”

— Arthur Koestler