The essence of mathematics lies in its freedom.
在我们的伊甸园中,苹果放弃了汇编语言:使用语言浪费机器周期是有罪的。现在,LISP机器允许LISP程序员放弃胸罩和无花果叶。
The best time to plant a tree was 20 years ago. The second-best time is now.