Every child should have mud pies, grasshoppers, water bugs, tadpoles, frogs, mud turtles, elderberries, wild strawberries, acorns, chestnuts, trees to climb, brooks to wade in, water lilies, woodchucks, bats, bees, butterflies, various animals to pet, hayfields, pine-cones, rocks to roll, sand, snakes, huckleberries and hornets; and any child who has been deprived of these has been deprived of the best part of education.

Every challenge in farming is an opportunity to learn and grow.

The streets of Paris have a memory of their own.

森林的真正价值不是用板英尺衡量，而是用生物多样性和碳封存。