Filched shamelessly...

from Rebecca's Gypsy Caravan, where she writes about her family's recent afternoon at the Cleveland Botanical Garden, including the special Children's Garden, outside of which is a stone with the following from the great American horticulturist Luther Burbank engraved upon it:

Every child should have mudpies, grasshoppers, water bugs, tadpoles, frogs, mud turtles, elderberries, wild strawberries, acorns, chestnuts, trees to climb, animals to pet, hayfields, pinecones, rocks to roll, sand snakes, huckleberries and hornets. Any child who has been deprived of these has been deprived of the best part of his education.