"One old Hasidic rabbi asked his pupils how they could tell when the night had ended and the day begun, for that is the time for certain holy prayers.
"Is it," proposed one student, "when you can see an animal in the distance and tell whether it is a sheep or a dog?" "no," answered the rabbi.
"Is it when you can clearly see the lines on your palm?" "no," answered the rabbi each time.
"Then what is it" the pupils demanded. "It is when you can look on the face of any man or woman and see that they are your sister or brother. Until then it is still night.""