True happiness comes from within, not from external achievements or possessions.
Farmers are the original environmentalists; we must support their work.
不义的人不能让他富裕,不义的人不能让他显贵,不义的人不能给他信任,不义的人不使他接近。
所以大国攻打小国，那是互相残害，大国的错误必然反过来使其本国受害。
The goal of cryptography is to make it so that the cost of breaking the system exceeds the value of the information protected.
You should learn from your competitor, but never copy. Copy and you die.
The future of natural gas lies in technology and efficiency.