Schoolmastery: Notes on Teaching and Learning

Significant change usually comes about not by introduction of something new but by reinterpretation of something old. Among the more interesting illustrations of this premise is that of Arthur C. Clarke, who in 2001: A Space Odyssey uses it to account for no less than the evolution of mankind. Back eons of time, so the story goes, herbivorous man-apes roamed the parched savannas of Africa in sea...