This can be stated in active form. Alternate translation: "People know a young man by his actions" (See: [[rc://en/ta/man/translate/figs-activepassive]])
These two words basically mean the same thing and emphasize how good this young person is. They can be combined into one word if necessary. Alternate translation: "pure" (See: [[rc://en/ta/man/translate/figs-doublet]])