| Link | Quote | Stars | Tags | Author |
| a4c5741 | Medical opinions differed as to the cause of this "humor" disease. | Raymond Smullyan | ||
| 009ba00 | Humor could not flourish in a wholly serious and rational atmosphere. | Raymond Smullyan | ||
| 80c7cff | Metaphysical problems about "mind" versus "matter" arise only from epistemological confusions. | Raymond Smullyan |