伐木不自其本，必复生；塞水不自其源，必复流；灭祸不自其基，必复乱。
解释：砍伐树木不把树根砍掉，必能重新生长；堵塞水不把源头堵住，必会重新流出；消除祸患不铲除产生祸患的根基，祸患还会再生。
改变世界的唯一方法是改变自己。
There can be no permanent progress in the battle against hunger until the agencies that fight for increased food production and those that fight for population control unite in a common effort.
I like to be a free spirit. Some don’t like that, but that’s the way I am.
In solitude, we find ourselves.