"There is no direct relation between being able to come up with the idea of the cartridge pencil and getting high scores on IQ tests," he says. "It's about envisioning something that no one has before. It is about having a keen eye. Anyone can acquire this ability."
「免削鉛筆的發明與腦筋好不好沒有很直接的關係，而是有沒有看到別人沒注意的細節，這就是觀察力的敏銳度，人人皆可訓練，」他說。