The strength of one's opinion should not exceed their knowledge on the matter.

One’s opinion should only be as strong as one’s knowledge on the matter.

Pride is a fallacy. None of us are greater than the sum of our parts.

Your assumptions are your windows on the world. Scrub them off every once in a while, or the light won't come in.

It does take great maturity to understand that the opinion we are arguing for is merely the hypothesis we favor, necessarily imperfect, probably transitory, which only very limited minds can declare to be a certainty or a truth.

When my information changes, I alter my conclusions. What do you do, sir?