"The truth is always something that is told, not something that is known. If there were no speaking or writing, there would be no truth about anything. There would only be what is."
可持续发展不仅是一种趋势，更是我们对后代的责任。
人生中最难的事情是知道该跨过哪座桥，该烧掉哪座桥。
如果我们想为子孙后代提供粮食，可持续农业是唯一的前进方向。
通货膨胀是没有立法的征税。