One must credit an hypothesis with all that has had to be discovered in order to demolish it.
Theories pass. The frog remains.
What makes our opponents useful is that they allow us to believe that without them we would be able to realize our goals.
Truth is always served by great minds, even if they fight it.
It is sometimes well for a blatant error to draw attention to overmodest truths.
Kill one man and you're a murderer, kill a million and you're a conqueror.