When you resort to attacking the messenger and not the message, you have lost the debate.
Fear not those who argue but those who dodge.
The well-bred contradict other people. The wise contradict themselves.
Wise men argue cases, fools decide them.
Debate is the death of conversation.
The smart way to keep people passive and obedient is to strictly limit the spectrum of acceptable opinion, but allow very lively debate within that spectrum.
There is only one rule for being a good talker - learn to listen.
Deliberation and debate is the way you stir the soul of our democracy.
Just to create awareness would be enough, to at least get a debate started.
Historically, the claim of consensus has been the first refuge of scoundrels; it is a way to avoid debate by claiming that the matter is already settled.
I disapprove of what you say, but I will defend to the death your right to say it
Honest differences of views and honest debate are not disunity. They are the vital process of policy making among free men.
Let me light my lamp", says the star, "And never debate if it will help to remove the darkness
Information, usually seen as the precondition of debate, is better understood as its by-product.
I have never in my life learned anything from any man who agreed with me.