R’ Moshe Feinstein wrote the following in the Igros Moshe (OC 109, Page 173, bottom of the right hand column):
?? ????? ???? ???”? ??? ???? ?????? ???? ??? ?? ??? ????? ????.
In modern times (he wrote it over 50 years ago – how much more so today!), there is nobody on the level of a gadol that it is forbidden to argue with.