disappointed but having learned from the experience
enttäuscht aber aus der Erfahrung gelernt (enttauscht aber aus der erfahrung gelernt)
"After that mistake, she was sadder but wiser."
"Nach diesem Fehler war sie trauriger, aber weiser." (nach diesem fehler war sie **sadder but wiser**.)
to organize things properly before taking action
other situations always seem better than your own
to make a noticeable difference or impact
intelligence or decision-making provided by AI systems
to argue against an idea to test how strong it is
the tendency of consumers to keep buying the same brand