An egocentric pessimist is a person who thinks he hasn't changed, but that other people are behaving worse than before.

Sometimes a pessimist is only an optimist with extra information.

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?

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