I've heard this sentiment expressed. The limits of rationality, reason, and scientific process is a whole topic worth exploring even if just for the philosophic value, but right now, discourse, within the framework of rationality and reason is the best tool society has to solve its problems. There's nothing else. Violence clearly isn't the tool. Nor is emotional reflex. Nor is anecdotal thinking. Nothing else scales and has the capability to tackle the sophistication of society-wide problems.