[81a bottom] R’ Yochanan quoting R’ Meir: Anything which is exclusively counted is considered significant and cannot be nullified (in a mixture).
Prac-T-cal Tidbits: Each and every single Jew among us is considered significant and cannot be “mingled” in with nor lost amongst the rest. We should never think that we or any other Jew is not unique. Rather, each person in the Jewish nation is truly special and has something remarkable to contribute to the nation. We all stand out with our own extraordinary traits and should harness our individual abilities to better our whole.