“Jewish Encyclopedia, art. Judah ben Samuel he-Hasid of Regensburg, vol. VII pp356-8”

"[...] if controversies were to arise, there would be no more need of disputation between two philosophers than between two calculators. For it would suffice for them to take their pencils in their hands and to sit down at the abacus, and say to each other (and if they so wish also to a friend called to help): Let us calculate."
The famous calculemus of Leibniz appears in several places of his writing; this is the most frequently quoted; variants are found in the Preface to his New Essays on Human Understanding, and in Dissertatio de Arte Combinatoria (1666). See R. Chrisley, Artificial Intelligence (2000), p. 14 https://books.google.ch/books?id=dLQ3bDy2tgYC&pg=PA14#v=onepage&q&f=false; H. Busche, Leibniz' Weg ins perspektivische Universum (1997), p. 134 https://books.google.ch/books?id=xAI4Wtp0GBoC&pg=PA134&lpg=PA134.

References

References

version in Dutch (citaat van Israëls, in het Nederlands): Ik geloof niet in joodse kunst. Er zijn joodse kunstenaars, d.w.z. kunstenaars die joods geboren zijn, maar dat wil nog niet zeggen dat hun werk joodse kunst is.
Quote of Jozef Israëls, 9 July 1907, translated from his letter (written in German) to the committee of the Exhibition for Jewish Art in Berlin; as cited in Jozef Israëls, 1824 – 1911, ed. Dieuwertje Dekkers; Waanders, Zwolle 1999, p. 55
Jozef Israëls was Jewish himself, but refused to call his art Jewish as the Zionist movement liked to call it
Quotes of Jozef Israels, after 1900

2007
Discography

London: Faber and Faber
1936 - 1977, Circle: International Survey of Constructive Art, 1937

Letter to Mary Gladstone (1881)
Context: There is no error so monstrous that it fails to find defenders among the ablest men. Imagine a congress of eminent celebrities, such as More, Bacon, Grotius, Pascal, Cromwell, Bossuet, Montesquieu, Jefferson, Napoleon, Pitt, etc. The result would be an Encyclopedia of Error.

Source: The Signature of All Things

Source: 1960s, Julian (1964), Chapter 5