lit. having presented a flawed argument, one has nothing further to add (idiom) / fig. unable to provide a convincing argument to support one's position / to not have a leg to stand on
texture / grain (of wood) / inner essence / intrinsic order / reason / logic / truth / science / natural science (esp. physics) / to manage / to pay attention to / to run (affairs) / to handle / to put in order / to tidy up