“Tzadikim are extremely sensitive, and need more shmirah from women than regular people. ”
Kiddushin 81b:
??? ????? ???? ?????? ????????? ????? ??? ???????? ????????? ?????????? ????? ?????????? ????????? ???????????? ????? ????? ??? ????? ???? ??? ??????????????? ????? ????? ?????????
???? ???????? ???????? ??? ???????? ????? ??? ???????????? ?????? ????????? ?????? ??????? ????????????? ??? ??????? ?????????? ???????? ??? ????????????? ???????? ??????????? ????? ?????? ??? ????? ????? ????? ?????????????? ???????? ????????? ???? ???????????????? ?????????? ????? ????? ????? ??????????? ???????????? ???????? ??? ???????? ?????????
?????? ?????? ????????
Kesubas 17a
???? ????? ????????? ???? ????????????? ??????????. ??????? ????? ????????: ????? ????? ??????????? ?????? ????? ?????: ??? ????????? ?????????? ???????????? � ????????, ????? ??? � ???
I also recommend seeing the Yam Shel Shlomo in Kiddushin 4:25 who explains that only a chasid gadol who knows his yetzer and where he is holding can rely on this.