Shalowness, immatury, unseriousness; mocking, trifling
It is reckless to make broad generalizations
That’s what careless words do. They make people love you a little less
When you’re young, you’re very reckless. Then you get conservative. Then you get reckless again
A fool thinks himself to be wise, but a wise man knows himself to be a fool
May be related to 2(g) Haste, 3(f) Pecularity, …
Incompatible with entire 24-th segment