He be came so engrossed in his work that while he was scouring the neighbor hood for tools and spare parts he would, absent-mindedly leave his bicycle at one of his ports of call.
常常他會騎著腳踏車出去找零件，一邊思索問題，結果就忘了車子，僅開開心心地抱著找到的材料回家。他對發明工作的狂熱與用心，使他跨過了一重重障礙，也克服了一層層的困難。