Sometimes, in the midst of his reading, no matter what the book might be which he had in his hand, he would suddenly fall into a profound meditation, whence he only emerged to write a few lines on the pages of the volume itself.

• 有时，他正在阅读，不问在他手里的是什么书，他会忽然堕入深远的思考，想完以后，立即在原书中写上几行。