我们今天种植的每一棵树都是留给后代的遗产。
我们开采的资源必须与我们为社会创造的价值相匹配。
The real moral test of a society is how it treats those who are at the dawn of life, the children; those who are in the twilight of life, the aged; and those who are in the shadow of life, the sick, the needy and the handicapped.