一份不允许我用武力捍卫自己免受攻击的契约总是无效的。
"The world is full of obvious things which nobody by any chance ever observes."
Innovation is the backbone of the oil industry; without it, we stagnate.
Chinese dairy industry must combine international vision with local practice to go global.
股市是一个将钱从急躁的人转移到耐心的人手中的工具。
The deepest theorems often arise from the simplest observations.