The stupidest man I ever met had a favourite saying.
It was:
'What do you think I am, stupid, or something?

Wisdom is when you understand what, previously, at best you only knew.

A certain person may have, as you say, a wonderful presence; I do not know. What I do know is that he has a perfectly delightful absence.

Teach honesty by all means - you do know what it is, don't you?

We are adjured not to burn the candle at both ends.
But how many people have verified that physically possible?

Any society which enjoins its members to adhere to both of these (politeness and truth) is a fraud.