I think you always learn something in every character you play onstage, either personally or creatively.
“A great department store, easily reached, open at all hours, is more like a good museum of art than any of the museums we have yet established.”
“He that gives good advice, builds with one hand; he that gives good counsel and example, builds with both; but he that gives good admonition and bad example, builds with one hand and pulls down with the other.”