Machinery is tangible and produces tangible results, whereas the returns on advertising are more difficult to perceive and measure.
機器在身邊，看得見、摸得著，只要一動，衣服就一件一件出來。可是花在廣告、行銷的錢卻像投到大海裡，短期內連個聲響也沒有。」此外，要改弦易轍，也有實際上的困難。