First they ignore you, then they say you're mad, then dangerous, then there's a pause and then you can't find anyone who disagrees with you. Tony Benn
Every one of us is, in the cosmic perspective, precious. If a human disagrees with you, let him live. In a hundred billion galaxies, you will not find another. Carl Sagan
To shoot a man because one disagrees with his interpretation of Darwin or Hegel is a sinister tribute to the supremacy of ideas in human affairs -- but a tribute nevertheless. George Steiner
My own opinion is enough for me, and I claim the right to have it defended against any consensus, any majority, anywhere, any place, any time. And anyone who disagrees with this can pick a number, get in line and kiss my ass. Christopher Hitchens
What Hells and Purgatories and Heavens I have inside of me! But who sees me do anything that disagrees with life--me, so calm and peaceful? Fernando Pessoa
Truth does not become more true by virtue of the fact that the entire world agrees with it, nor less so even if the whole world disagrees with it. Maimonides