童年是我们都曾访问过但不太记得的异国他乡。
Childhood is a foreign country we've all visited but can't quite remember.
The human being needs sadness as much as he needs joy.
可持续发展已不再是选择，而是任何希望在未来蓬勃发展的企业的必需品。
人工智能的未来是无监督学习。
优化编译器很像核电站。它们都非常强大，也非常危险。