A resident arrived to these shores was trying to orient himself to his new land.
“Tell me something” he asked a friend. “How far is it from New York to Philadelphia?”
About 100 miles,” answered the friend.
And from Philadelphia to New York?”
Why, it is the same distance, naturally.”
What’s so natural, retorted the newcomer. Backwards and forwards is not necessarily the same distance.
For example, from Purim to Passover is one month. But from Passover to Purim, isn’t it 11 months?”
Professor Higgins: “Good morning sir. How are you?”
Professor Einstein: “Relative to what?”
…and everything is, isn’t it?