Tolerance
The roof flowers see everything. But, they only see. That is because they learned the art of tolerance.
These roof flowers only see because they do not judge. They accept everything. We humans can learn a thing or two about tolerance from these roof flowers.
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Tolerance is one thing that Genghis Khan (かん) had a surprising amount of.
You wouldn't expect it, but he actually allowed many types of cultures, religions, and peoples to exist under his reign. The Mongols had an exceptional amount of tolerance for the time.