When an end is lawful and obligatory, the indispensable means to it are also lawful and obligatory. 如果一個目的是正當而必須做的，則達到這個目的的必要手段也是正當而必須採取的
If you put out your hands, you are a laborer; if you put out your hands and mind, you are a craftsperson; if you put out your hands, mind, heart and soul, you are an artist. 如果你用雙手工作，你是一個勞力；如果你用雙手和頭腦工作，你是一個工匠；如果你用雙手和頭腦工作，並且全身投入，你就是一個藝術家
The world can be changed by man's endeavor, and that this endeavor can lead to something new and better. No man can sever the bonds that unite him to his society simply by averting his eyes. 人經過努力可以改變世界，這種努力可以使人類達到新的、更美好的境界。沒有人僅憑閉目、不看社會現實就能割斷自己與社會的聯繫
Only those who have the patience to do simple things perfectly ever acquire the skill to do difficult things easily. 只有有耐心圓滿完成簡單工作的人，才能夠輕而易舉地完成困難的事
The decline of literature indicates the decline of a nation; the two keep in their downward tendency. 文學的衰落表明一個民族的衰落。這兩者走下坡路的時間是齊頭並進的
Life can only be understood backwards; but it must be lived forwards. 要理解人生，需要向後看，但要更好地生活，就必須向前看
Histories make men wise; poems witty; the mathematics subtle; natural philosophy deep; moral grave; logic and rhetoric able to contend. 歷史使人明智，詩詞使人靈秀，數學使人周密，自然哲學使人深刻，倫理使人莊重，邏輯修辭學使人善辨
I want to bring out the secrets of nature and apply them for the happiness of man. I don't know of any better service to offer for the short time we are in the world. 我想揭示大自然的秘密，用來造福人類。我認為，在我們的短暫一生中，最好的貢獻莫過於此了
If a man empties his purse into his head, no man can take it away from him. An investment in knowledge always pays the best interest. 傾己所有追求知識，沒有人能奪走它，向知識投資，收益最佳