Read not to contradict and confute, nor to believe and take for granted... but to weigh and consider. Francis Bacon
I have forced myself to contradict myself in order to avoid conforming to my own tastes. Marcel Duchamp
I begin with the principle that all men are bores. Surely no one will prove himself so great a bore as to contradict me in this. Soren Kierkegaard
I never notice what is said about me. I am credited with things I have never done, and abused for them. It would be idle to attempt to contradict newspaper talk and street rumors. Jay Gould
To hope is to contradict the future. Emil Cioran
Poets are like proverbs: you can always find one to contradict another. Jules Verne