The mechanistic philosophy is to be taken or left: it must be left if the least grain of dust, by straying from the path foreseen by mechanics, should show the slightest trace of spontaneity.

机械论哲学要么被采纳， 要么被抛弃：如果最小的一粒尘埃偏离了力学所预见的路径， 就会显示出最轻微的自发性痕迹， 那么它就必须被抛弃。