Worried that their son was too optimistic, the parents of a little boy took him to a psychiatrist. In an attempt to dampen the boy’s spirits, the psychiatrist showed him into a room piled high with nothing but horse manure. Instead of displaying distaste, the little boy clambered to the top of the pile and began digging.

“What are you doing?” the psychiatrist asked.

“With all this manure,” the little boy replied, beaming, “there must be a pony in here somewhere.”