The right of nature... is the liberty each man hath, to use his own power, as he will himself, for the preservation of his own nature; that is to say, of his own life.
当你经历生活给我们所有人带来的挫折时,改变你对自己说的那些破坏性的话是乐观的核心技能。
The challenge of our time is to harness energy without harming the planet.