Hillel said, Separate not thyself from the congregation; trust not in thyself until the day of thy death; judge not thy fellow-man until thou art come into his place and say not anything which cannot be understood at once, in the hope that it will be understood in the end; neither say, When I have leisure I will study; perchance thou wilt have no leisure.
–Joseph Hertz, Sayings of the Fathers (or Pirke Aboth), 2.5
