It is clear that the individual who persecutes a man, his brother,
because he is not of the same opinion, is a monster
Voltaire
It is better to remain silent and be thought a fool
than to open your mouth and remove all doubt.
Jonathan Swift
Never argue with an idiot.
They drag you down to their level
then beat you with experience
Dilbert
A little learning is a dangerous thing; Drink deep, or taste not the
Pierian spring. There shallow draughts intoxicate the brain,
and drinking largely sobers us again
Alexander Pope
...I wish that I may never think the smiles of the great and powerful
a sufficient inducement to turn aside from the straight path
of honesty and the convictions of my own mind
David Ricardo