最可持续的采石场是能够平衡生产和环境管理的采石场。
当立法和行政权力集中在同一人或同一机构时,就不会有自由。
The condition of man... is a condition of war of everyone against everyone.
The land is our greatest teacher; we must listen to it and learn from it.
如果一个想法在一开始不是荒谬的,那它就是没有希望的。