81.Prevention is better than cure.

预防胜于治疗。

82.An ounce of prevention is worth a pound of cure.

一分预防胜似十分治疗。

83.Bitter pills may have wholesome effect.

良药苦口利于病。

84.A good medicine tastes bitter.

良药苦口。

85.There is no friend so faithful as a good book.

最忠实的朋友莫过于一本好书。

86.Books,like friends,should be few and well chosen.

书籍如朋友，宜少宜精选。

87.A book is the same today as it always was and it will never change.

好书千载常如新。

88.A good book is a best friend who never turns his back upon us.

好书如至友，永远不相负。

89.In books,are embalmed the greatest thoughts of all ages.

伟大思想古今有，载入书中成不朽。

90.Some books are to be tasted,others to be swallowed,and some few to be chewed and digested.

一些书可以品味，另外一些书可以吞食，少数的一些可以咀嚼、消化。