Pirkei Avot

"They [the Men of the Great Assembly] would always say these three things: Be cautious in judgment. Establish many pupils. And make a safety fence around the Torah."

"He (Hillel) would also say: If I am not for myself, who is for me? And when I am for myself, what am I? And if not now, when?"

"Shammai would say: Make your Torah study a permanent fixture of your life. Say little and do much. And receive every man with a pleasant countenance."

"Rabbi Shimon the son of Gamliel would say: By three things is the world sustained: law, truth and peace."

"וְאַל תַּאֲמִין בְּעַצְמְךָ עַד יוֹם מוֹתְךָ"

"Shimon the Righteous was among the last surviving members of the Great assembly. He would say: The world stands on three things: Torah, the service of G-d, and deeds of kindness."

"Yossei the son of Yoezer of Tzreidah would say: Let your home be a meeting place for the wise; dust yourself in the soil of their feet, and drink thirstily of their words."

"Rabbi (Judah HaNassi) would say: Which is the right path for man to choose for himself? Whatever is harmonious for the one who does it, and harmonious for mankind. Be as careful with a minor mitzvah as with a major one, for you do not know the rewards of the mitzvot. Consider the cost of a mitzvah against its rewards, and the rewards of a transgression against its cost. Contemplate three things, and you will not come to the hands of transgression: Know what is above from you: a seeing eye, a listening ear, and all your deeds being inscribed in a book."

"He [Hillel] used to say: The more flesh, the more worms; the more property, the more anxiety; the more wives, the more witchcraft; the more female slaves, the more lewdness; the more slaves, the more robbery; [but] the more Torah, the more life; the more sitting [in the company of scholars], the more wisdom; the more counsel, the more understanding; the more charity, the more peace. If one acquires a good name, he has acquired something for himself; if one acquires for himself knowledge of Torah, he has acquired life in the world to come."

"Rabban Yochanan the son of Zakkai received the tradition from Hillel and Shammai. He would say: If you have learned much Torah, do not take credit for yourself---it is for this that you have been formed."

"Rabbi Eliezer would say: The honor of your fellow should be as precious to you as your own, and do not be easy to anger. Repent one day before your death."

"Rabbi Joshua would say: An evil eye, the evil inclination, and the hatred of ones fellows, drive a person from the world"