What one describes in the books is one’s thought in his mind. The personality of a book is that of the author.
书迹即心迹，书品即人品。

If a man empties his purse into his head, no one can take it from him.
如果一个人倾其所有以求学问，那么这些学问是没有人能拿走的。

Ignorance is not innocence but sin.
无知并非纯真，而是罪恶。

Isn’t it a happy thing if you review what you have learned on time?
学而时习之，不亦乐乎?

It never will rain roses. When we want to have more roses we must plant trees.
天上永远不会掉下玫瑰来，如果想要更多的玫瑰，必须自己种植。

Knowledge comes, but wisdom lingers.
知识来了，智慧却迟迟不前。

Knowledge is one thing, virtue is another.
知识是一回事，美德是另一回事。

Learning without thinking leads to confusion; thinking without studying results in tardiness.
学而不思则罔，思而不学则殆。