The most nonsensical notion, the most causal slip of the tongue, the most fantastic dream, must have a meaning and can be used to unriddle the often incomprehensible maneuvers we call thinking.

• 最不理智的想法，最不经意的失言，最荒诞的梦境也必有意义，它们还可以用来解释被我们称作思维的通常不可理解的活动。