““In m second year I attended a public debate on a theme that interested me, though not by its novelty: does life mainly evolve through small gradual changes, or through big catastrophic ones? In those days that theme was supposed to be religious as well as scientific, so the principle speakers swerved from fanatical solemnity to facetious jocularity, and changed the ground of their argument whenever it gave them the slightest advantage over their opponents.””
