Every age has its debilitating prejudice; open-mindedness is ours.
Operations of thought are like cavalry charges in a battle — they are strictly limited in number, require fresh horses, and must only be made at decisive moments.
Pretentious nonsense and pseudo-difficulty drive truly difficult problems out of circulation, as bad money drives out good.
If you hear hoofbeats, and see stripes, think zebras, not horses.
The serial disciple is often mistaken for an independent thinker.
Facts, like food, should be chewed thoroughly before swallowing.
The contrarian attends most scrupulously to conventional wisdom.
We compensate for limited intelligence with bad memories.
Every logical fallacy is also a valid heuristic.
The two great metaphors for society in political philosophy have been machine and organism: thus the two for the individual have been cog and cell.
Better that X guilty men go free than one innocent man be convicted. Solve for X.