He noted a big difference between reading the law and practising it.

他发现阅读法律书和进行实践之间的巨大差别。

So he began to read law books.

于是他开始阅读法律书籍。

Afterward, at a period when the actual Grew had passed from the factory to the bookkeeper's desk, his invisible double had been reading law at Columbia — precisely again what Ronald did!

之后，当真正的 Grew 从工厂转到簿记员的办公桌时，他的隐形替身一直在哥伦比亚大学读法律——这又是罗纳德所做的！