Every barrel of oil we extract must be done responsibly, with minimal environmental impact.
我们开采的每一桶石油都必须以最小的环境影响负责任地进行。
And when they leave,they take your life of details with them. You are expected to move on again, but you don't remember what it was that moved you, because no one's asked you in so long. Not even yourself.
The boundaries which divide Life from Death are at best shadowy and vague. Who shall say where the one ends, and where the other begins?
逻辑学研究不仅仅是关于形式系统，更是关于人类推理的本质。