chutzpah 敢做敢為

wiki: In Hebrew, chutzpah is used indignantly, to describe someone who has overstepped the boundaries of accepted behavior.[citation needed] In traditional usage, the word expresses a strong sense of disapproval, condemnation and outrage. the original Yiddish word has a strongly negative connotation but the form which entered English through Ameridish has taken on a broader meaning, having been popularized through vernacular use in film, literature, and television. The word is sometimes interpreted—particularly in business parlance—as meaning the amount of courage, mettle or ardor that an individual has.