The fundamental cause of the trouble is that in the modern world the stupid are cocksure while the intelligent... — Bertrand Russell
The fundamental cause of the trouble is that in the modern world the stupid are cocksure while the intelligent are full of doubt.
Author: Bertrand Russell
Insight: Confidence isn't a sign of being right—it's often a sign of not knowing enough to be worried. The smartest people in your life probably agonize over decisions while the most unbearable ones speak with absolute certainty. Doubt, it turns out, is the luxury of actually thinking.
Source: Message to Intellectuals, The Listener, 19 December 1931