该句使用比喻表达，将缺少友谊的世界形象地描述为荒野。
The lack of true friends is the purest and most pitiful form of loneliness; Without friendship, the world is nothing more than a wilderness. In this sense, those whose nature is unfit for friendship possess a temperament closer to beasts than humans.
Some books are to be tasted, others to be swallowed, and some few to be chewed and digested.
Do not be overly stingy with small sums of money. Money has wings; sometimes it flies away on its own, and sometimes it must be let go to bring more back.
Books are ships that cross the sea of time.
Angels fell by desiring the power of God; humans fell by desiring the knowledge of God.
The reason people prefer to believe errors rather than love the truth is not only because searching for truth is arduous, but also because errors cater more to certain base human natures.
All acquisition of knowledge begins with memory, and memory is the foundation of all intellectual activities.
If friendship can temper human emotions, its other function is to enhance human wisdom.
People of noble birth are often not industrious, yet they often feel envy toward those who work hard.
Hypocrisy cannot be hidden in the web of our lives; otherwise, it leaves a trace of decay on every thread of its weave.
Cunning is a sinister and wicked kind of intelligence.
If one asks what is the most important talent in life, the answer is: first, fearlessness; second, fearlessness; third, fearlessness.
缺乏真正的朋友，是纯粹而可怜的孤独；没有友谊，这世界不过是一片荒野；我们可以这样理解“孤独”：凡是天性不配交友的人，其性情更接近于禽兽，而非人类。
有些书只需品尝，有些需要吞咽，而还有少数书籍应当细嚼慢咽。
不要对小钱过于计较。金钱是长着翅膀的东西，有时它会自行飞走，有时必须让它流转出去，才能带回更多。
书籍是横渡时间大海的航船。
天使因为渴望拥有与神同等的权力而堕落；人类则因为追求与神同等的知识而堕落。
人们之所以宁愿相信谬误而不愿热爱真理，不仅是因为探索真理是艰辛的，更是因为谬误更能迎合人类某些恶劣的天性。
一切知识的获得皆始于记忆，而记忆是一切智力活动的基础。
如果说友谊能调剂人的情感，那么它的另一种作用便是能增进人的智慧。
出身高贵的人往往不够勤劳，但他们却常对劳动的人心怀嫉妒。
在我们生命的之网中，不能隐藏虚伪，否则，每一根经纬线上都会留下腐烂的痕迹。
狡猾是一种阴险而邪恶的聪明。
如果问人生中最重要的才能是什么？答案是：第一，无所畏惧；第二，无所畏惧；第三，依然是无所畏惧。