"One day a rabbi asked his students, 'How can you tell that night has ended and the day is returning?'
One student suggested, 'When you can see clearly that an animal in the distance is a lion and not a leopard.'
'No,' said the rabbi.
Another said, 'When you can tell that a tree bears figs and not peaches?'
'No,' said the rabbi. 'It is when you can look on the face of another person and see that woman or man is your sister or brother. Because until you are able to do so, no matter what time of day it is, it is still night.' "
from What is the Point of Being a Christian, by Timothy Radcliffe, OP (pg.125)