If time is precious, no book that will not improve by repeated readings deserves to be read at all.

If time is precious, no book that will not improve by repeated readings deserves to be read at all.

如果时间是宝贵的，没有一本书不能通过反复阅读而有所提高，那么这本书就根本不值得一读。

-- Thomas Carlyle 托马斯·卡莱尔