“In the metaphysical elements of aesthetics the various nonmoral feelings are to be made use of; in the elements of moral metaphysics the various moral feelings of men, according to the differences in sex, age, education, and government, of races and climates, are to be employed.”
Part III : Selection on Education from Kant's other Writings, Ch. I Pedagogical Fragments, # 58
The Educational Theory of Immanuel Kant (1904)
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Immanuel Kant 200
German philosopher 1724–1804Related quotes

Source: The Lost World of Thomas Jefferson (1948), Ch. 3, The Physiology of Thought and Morals, Introduction, p. 111.

Quote from De Cirico's text 'A DISCOURSE ON THE MATERIAL SUBSTANCE OF PAINT', 1942 http://www.fondazionedechirico.org/wp-content/uploads/541-547Metafisica5_6.pdf, p. 542
1920s and later

“Metaphysics is a consequence of not feeling very well.”
A metafísica é uma consequência de estar mal disposto.
Tabacaria (1928), trans. Richard Zenith

As quoted in: Catherine Bock-Weiss. Henri Matisse and Neo-Impressionism, 1898-1908, Nr. 13 UMI Research Press, 1977. p. 20
From Delacroix to Neo-Impressionism, 1899

Ko Wen-je (2019) cited in " Fruit, vegetable prices will not fall: Ko http://www.taipeitimes.com/News/taiwan/archives/2019/02/01/2003709059" on Taipei Times, 1 February 2019.
“Hell is an element of any religion which is morally healthy.”
as quoted by Miles H. Krumbine in: [Review of What Is Hell?, The Journal of Religion, 10, 3, 1930, 435–436, 0022-4189, 10.1086/480965]