Respectfully Quoted: A Dictionary of Quotations. 1989.
The day is short, the labor long, the workers are idle, and reward is great, and the Master is urgent.
Aboth, 2:15, saying of Rabbi Tarfon. Pirkay Avot, often known in English as the Chapters of the Fathers, is the best known of the books of the Mishnah, first part of the Talmud. Translations vary; that above is from A Treasury of Jewish Quotations, ed. Joseph L. Baron, p. 277 (1956).