Karl Pearson made similar division of the sciences into abstract and concrete
Source: Classification and indexing in science (1958), Other Chapters, p. 154.
“The Foundation of Empire is Art & Science Remove them or Degrade them & the Empire is No More — Empire follows Art & Not Vice Versa as Englishmen suppose.”
Annotations to Sir Joshua Reynolds's Discourses
1790s
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William Blake 249
English Romantic poet and artist 1757–1827Related quotes

“Perl programming is an *empirical* science!”
[10226@jpl-devvax.JPL.NASA.GOV, 1990]
Usenet postings, 1990

“Mind, even more deadly to empires than to individuals, erodes them, compromises their solidity.”
History and Utopia (1960)

1950s, Loving Your Enemies (Christmas 1957)
Context: Love is the most durable power in the world. This creative force, so beautifully exemplified in the life of our Christ, is the most potent instrument available in mankind's quest for peace and security. Napoleon Bonaparte, the great military genius, looking back over his years of conquest, is reported to have said: "Alexander, Caesar, Charlemagne and I have built great empires. But upon what did they depend? They depended on force. But centuries ago Jesus started an empire that was built on love, and even to this day millions will die for him." Who can doubt the veracity of these words. The great military leaders of the past have gone, their empires have crumbled and burned to ashes. But the empire of Jesus, built solidly and majestically on the foundation of love, is still growing. It started with a small group of dedicated men, who, through the inspiration of their Lord, were able to shake the hinges form the gates of the Roman Empire, and carry the gospel into all the world. Today the vast earthly kingdom of Christ numbers more than 900,000,000 and covers every land and tribe.
Preface (1961) p. vi; Partly cited by Stephen E. Robertson (2011) " On retrieval system theory http://www.iskouk.org/conf2011/papers/robertson.pdf".
On Retrieval System Theory (1961)

“The empires of the future are the empires of the mind.”
Speech at Harvard University, September 6, 1943 ( full text https://www.winstonchurchill.org/resources/speeches/1941-1945-war-leader/the-price-of-greatness-is-responsibility, audio https://www.youtube.com/watch?v=ESiuSi8Qp9U).
The Second World War (1939–1945)

“The key is not to confuse myth and empirical results, or religion and science.”
Source: Dean of the Plasma Dissidents (1988), p. 196.
Context: Since religion intrinsically rejects empirical methods, there should never be any attempt to reconcile scientific theories with religion. An infinitely old universe, always evolving, may not be compatible with the Book of Genesis. However, religions such as Buddhism get along without having any explicit creation mythology and are in no way contradicted by a universe without a beginning or end. Creatio ex nihilo, even as religious doctrine, only dates to around AD 200. The key is not to confuse myth and empirical results, or religion and science.