Mathematics is written for mathematicians.
數學是為數學家而寫的。
The most perfect education, in my opinion, is such an exercise of the understanding as is best calculated to strengthen the body and form the heart.
顯然,了解自然法則無異于了解其中表達的上帝的思想。
正確陳述的反面是錯誤陳述。但一個深刻真理的反面很可能是另一個深刻真理。
人生就像一場逆行的旅程,我也是一個匆匆的過客。