Gratitude is the sign of noble souls.
It is useless attacking the insensible.
There are many statues of men slaying lions, but if only the lions were sculptors there might be quite a different set of statues.
Clumsy jesting is no joke.
Others may try to feed our ego, but it is up to us to constrain it.
Always stop to think whether your fun may be the cause of another's unhappiness