“If one does not understand a person, one tends to regard him as a fool.”
Mysterium Coniunctionis http://books.google.com/books?id=avckAQAAMAAJ&q=%22If+one+does+not+understand+a+person+one+tends+to+regard+him+as+a+fool%22&pg=PA125#v=onepage, from The Collected Works of C. G. Jung (1966)
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C.G. Jung 257
Swiss psychiatrist and psychotherapist who founded analytic… 1875–1961Related quotes

“Tell me then, does love make one a fool or do only fools fall in love?”
Source: My Name is Red

“429. Hee that hath one hogge makes him fat; and hee that hath one sonne makes him a foole.”
Jacula Prudentum (1651)

"Bible Stories for Adults, No. 20: The Tower" p. 76 (originally published in Author’s Choice Monthly #8: Swatting at the Cosmos)
Short fiction, Bible Stories for Adults (1996)

“A fool always finds one still more foolish to admire him.”
Un sot trouve toujours un plus sot qui l'admire.
Variant A fool always finds a greater fool to admire him.
Canto I, l. 232
The Art of Poetry (1674)

“One who is in a dying condition is regarded as a living person in all respects.”
Biomedical Ethics and Jewish Law http://www.myjewishlearning.com/ideas_belief/bioethics/Bioethics_Euthanasia_TO/Bioethics_EuthanMedi_Rosner.htm, published by KTAV http://www.ktav.com/
Context: One who is in a dying condition is regarded as a living person in all respects. It is not permitted to bind his jaws, to stop up the organs of the lower extremities, or to place metallic or cooling vessels upon his navel in order to prevent swelling. He is not to be rubbed or washed, nor is sand or salt to be put upon him until he expires. He who touches him is guilty of shedding blood. To what may he be compared? To a flickering flame, which is extinguished as soon as one touches it. Whoever closes the eyes of the dying while the soul is about to depart is shedding blood. One should wait a while; perhaps he is only in a swoon.

Alfred Binet (1894). Psychologies des grands calculateurs et joueurs d’echecs. Paris: Hachette. p. 71; As cited in: John Carson, "Minding matter/mattering mind: Knowledge and the subject in nineteenth-century psychology." in: Studies in History and Philosophy of Science Part C. 30.3 (1999): p. 363

"The Waiting" translated by James E. Irby (1959)