The only truly secure system is one that is powered off, cast in a block of concrete and sealed in a lead-lined room with armed guards - and even then I have my doubts.

翻译：强调了人与自然的相互依存关系，人的价值在于利用天地之功来养活自己。

可持续性不再是一个选择；它是乳制品农业未来的必需品。

知识最大的敌人不是无知，而是知识的幻觉。

The wild is a place of lessons. To survive, you have to learn from them.

学校必须是一个让孩子学会将眼前欲望服从于更大社会利益要求的地方。