[TheWorstPlayer]

If you bet all-in (and he is obviously behind your hand range a very large portion of the time you do so) then you are leaving open the room for him to fold and thereby 'outplay' you. If, however, you only make a bet such that he is getting the exact correct odds to call, fold, or raise with neutrality then there is NO WAY for him to outplay you by doing any action and thereby it is impossible for him to outplay you. The only possibility is for you to outplay him because he cannot properly neutralise your options. Yes, it this concept is much harder (impossible?) in NL because you have to pick an amount to bet and there are stack size constraints, but that is still the only way to guarantee that you are outplaying your opponent and will never be outplayed. It is thereby perfect play. Yes, if your opponent is guaranteed to make certain very bad decisions, you can get more EV out of them by other methods, but it is not guaranteed. The only way to GUARANTEE outplaying your opponent is to neutralise all of their options.