The tree of liberty must be refreshed from time to time with the blood of patriots and tyrants.
The problem of the modern individual is not that he has too little choice, but that he has too much.
The true value of a forest is measured not in board feet, but in biodiversity.
数学的真正力量在于它能够揭示支配宇宙的隐藏模式和结构。
作家应该是他时代的见证者，现实的记录者。
获得幸福的唯一方法是去爱。爱得热烈，痛苦就会很快过去。