该句使用了拟人手法，将书籍比作朋友，通过转折连词though连接两个分句，生动地表达了书籍虽无情感但始终如一的特点。
Books can preserve our childlike wonder and sustain our youth.
If reading is not applied in practice, the books read are equal to waste paper.
Young and insightful, I could memorize books as soon as I read them.
Reading cultivates a complete person, conversation trains an agile mind, and writing creates a precise character.
One who fails to resolve to cultivate thinking loses the greatest pleasure in life.
Books are friends; though they lack passion, they are extremely loyal.
Mechanical reading harms oneself, and speaking without understanding harms others.
Reading without reflection makes one feel knowledgeable; but reading with deep thought reveals how little one truly knows.
No one reads a book mechanically. Everyone studies themselves through books, either discovering or controlling themselves.
Richness in knowledge brings satisfaction to the soul.
Chiseling a wall to steal light, gathering fireflies in a silk bag; Che Yin and Kuang Heng endured poverty to devote themselves to studying.
Reading should not be like swallowing a date without chewing; one must absorb what is truly needed.
One regrets knowing little when books are needed, and only understands the difficulty of things after experiencing them.
Studying laws and books for forty years, there is blue sky above my official hat.
In setting goals, one should think of true character; in reading, one must exert arduous effort.
书籍能够守护我们的童心，也能维系我们的青春。
若读书而不能将其应用于实践，那么所读之书便等同于废纸。
年幼时聪敏悟性过人，读书往往能即刻背诵。
读书可以培养一个完人，谈话可以训练一个人的敏捷，而写作则能造就一个人的准确。
如果不下定决心培养思考的能力，便失去了生活中最大的乐趣。
书籍是朋友，虽然没有炽热的情感，却极为忠实。
死读书不仅害己，一旦开口还会害人。
读书若不加思索，你会觉得自己懂得很多；但当读书伴随深度思考时，你才会清晰地意识到自己懂得甚少。
没有人会死板地读一本书。每个人都从书中审视自己，要么发现自我，要么控制自我。
知识上的富有，可以享受心灵上的满足。
凿壁偷光，聚萤作囊；车胤与匡衡忍贫读书的故事流传至今。
读书不能囫囵吞枣，而要从中汲取自己所需之物。
书到用时方恨少，事非经过不知难。
读律看书四十年，乌纱头上有青天。
立志当思真品格，读书须尽苦功夫。
"The world is much the same loyalty is often misunderstood"
"The loyal are often misunderstood by those they help."
"True gold does not fear the fire, nor does a loyal minister fear death."
"Books are friends, without passion, but very faithful."
"True love cannot be expressed in words; actions are the best proof of loyalty."