As he toddled round the run-down family farm in the hills near Cologne, he would hit things with it to see what sound they made.

• 当孩童的他蹒跚在科隆附近小山丘的破败家庭农场附件转悠时，他会用小木锤到处敲打东西，看它们会发出什么样的声音。