The study of computational complexity is not just about classifying problems; it is about understanding the nature of computation itself.
Chemistry is not just about mixing things in a flask. It's about understanding the world at a molecular level.
Certification is not the destination; it's the starting point of responsible forestry.
种树的最佳时间是20年前;第二好的时间就是现在。
I can't make everyone like me because I'm not a god.
"The truth is rarely pure and never simple."