There is a Japanese saying I recall once having heard, of the five stages of man’s growth.

There is a Japanese saying I recall once having heard, of the five stages of man’s growth. “At ten, an animal; at twenty, a lunatic; at thirty, a failure; at forty, a fraud; at fifty, a criminal.” And at sixty, I would add (since by that time one will have gone through all this), one begins advising one’s friends; and at seventy (realizing that everything said has been misunderstood) one keeps quiet and is taken for a sage.

-- Joseph Campbell
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