You must be wise, but not too wise.

You must never actually cheat the customer, even if you can. You must make her happy and satisfied, so she will come back.

Some wisdom you must learn from one who's wise.

Even to observe neutrality you must have a strong government.

The trouble with Grace, she thought, is that she is so literal. But that was the trouble with most people, when it came down to it; there were very few who enjoyed flights of fantasy, and to have that sort of mind--one which enjoyed dry with and understood the absurd--left one in a shrinking minority.

How prone to doubt, how cautious are the wise!