Cultural worldviews and values are reflected in the idioms and proverbs of languages. German is no different. Many proverbs have different versions in different languages.
Deutsche Welle has a long list of these for German. Visit: Das sagt man so
Meet the Germans has an episode on idioms. Visit: German idioms and what they really mean
EasyGerman asks people on the street to explain idioms. Visit: Typical German Idioms