Also known as "Hillel the Elder": Succah 28a; Ketuvot 67b; Nedarim 9b
Praising the Clean Language of Rabbi Yochanan Ben Zakkai: Pesachim 3b
Hillel's statement at the Celebration of the Water Libation, "If I am here, then everyone is here; if I am not here, no one is here!": Succah 53a [See Rashi, Tos.]