自然的统一性不是假设而是事实。
凡事不能只看表面现象。钓鱼人虽然躬着身子，并不是因为对鱼恭敬；捕捉老鼠的人，把虫子留给老鼠吃，并不是因为喜爱老鼠。
农业的可持续性不是一种选择，而是生存的必需。
The old believe everything; the middle-aged suspect everything; the young know everything.
Reason is the soul of the law； the reason of the law is the soul.
The greatest threat to our planet is the belief that someone else will save it.