Thomas Luckmann. The sociology of language, Bobbs-Merrill, 1975. p. 56
“That I was not suited to commerce or academic study in no way proves that I should also be unfit to be a painter.”
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Vincent Van Gogh 238
Dutch post-Impressionist painter (1853-1890) 1853–1890Related quotes

Dr. Wallis's Account of some Passages of his own Life (1696)

Silencing the Scientist: Tyrone Hayes on Being Targeted by Herbicide Firm Syngenta https://www.democracynow.org/2014/2/21/silencing_the_scientist_tyrone_hayes_on (February 21, 2014)

“In recent times, Surrealist painters have used descriptive illusionistic academic methods.”
In a letter to Polish poet Jan Brzekowski, ca. 1930, co-publisher of the Franco-Polish magazine 'L'art contemporain'; from Jours effeuillés: Poèmes, essaies, souvenirs, Hans Arp, Gallimard, Paris 1966, p. 63
Arp's critical quote refers to the creation of art by the French Surrealists in which Jean Arp participated for a few years and then departed.
1930s

Arthur Young (1770) A six months tour through the north of England http://books.google.com/books?id=mf9KAAAAYAAJ&pg=PA557. p. 557; Partly cited in: Paul Mantoux (2013), The Industrial Revolution in the Eighteenth Century, p. 345

John Church Hamilton, History of the republic of the United States of America: as traced in the writings of Alexander Hamilton and of his cotemporaries, v. 7 p. 790. John Church Hamilton was Alexander Hamilton's son. He gives his source for the first quotation as the Reminiscences of General Morton, but gives no source for the second.
Attributed
Context: It was the tendency to infidelity he saw so rife that led him often to declare in the social circle his estimate of Christian truth. “I have examined carefully,” he said to a friend from his boyhood, “the evidence of the Christian religion; and, if I was sitting as a juror upon its authenticity, I should unhesitatingly give my verdict in its favor.” To another person, he observed, “I have studied it, and I can prove its truth as clearly as any proposition ever submitted to the mind of man.”

“If I were a painter
I would paint my reverie
If that's the only way for you to be with me”
"Painter Song", Come Away with Me (2002)
Song lyrics

Ich soll niemals anders verfahren als so, dass ich auch wollen könne, meine Maxime solle ein allgemeines Gesetz werden.
Kant's supreme moral principle or "categorical imperative"; Variant translations:
Act only on that maxim which you can at the same time will that it should become a universal law.
Act as if the maxim of thy action were to become by thy will a universal law of nature.
So act that your principle of action might safely be made a law for the whole world.
May you live your life as if the maxim of your actions were to become universal law.
Live your life as though your every act were to become a universal law.
Do not feel forced to act, as you're only willing to act according to your own universal laws. And that's good. For only willfull acts are universal. And that's your maxim.
Groundwork of the Metaphysics of Morals (1785)