“My business is not prognosis, but diagnosis. I am not engaged in therapeutics, but in pathology.”

Source: The Unabridged Journals of Sylvia Plath

“The Making of Samuel Beckett,” New York Review of Books, vol. LVI, no. 7 (April 30, 2009), p. 14

Source: 2005 GDC Keynote https://www.youtube.com/watch?v=w9HUMt2rrOI

Source: Tender Is the Night

Vol. I, Ch. 1 : A Man of His Day, p. 8
New Grub Street : A Novel (1891)
Context: I am learning my business. Literature nowadays is a trade. Putting aside men of genius, who may succeed by mere cosmic force, your successful man of letters is your skilful tradesman. He thinks first and foremost of the markets; when one kind of goods begins to go off slackly, he is ready with something new and appetising. He knows perfectly all the possible sources of income. Whatever he has to sell he'll get payment for it from all sorts of various quarters; none of your unpractical selling for a lump sum to a middleman who will make six distinct profits.

As quoted in Wayne Besen, Anything but Straight: Unmasking the Scandals and Lies behind the Ex-Gay Myth, Harrington Park Press. ISBN 1560234458

The Aquarian Conspiracy (1980), Chapter Nine, Flying and Seeing: New Ways to Learn

Cold Mountain Transcendental Poetry
Context: Today I sat before the cliff
Until the mist and rainbows disappeared
I followed the emerald stream
Explored a thousand tiers of green cliffs
In the morning my spirit rests among white clouds
At night a bright moon floats in the sky
I am free of the busy world
There is not a doubt in my heart or a worry to disturb my mind

5.177: Vanijja Sutta https://www.accesstoinsight.org/tipitaka/an/an05/an05.177.than.html, as translated by Thanissaro Bhikkhu (2001)
Source: Pali Canon, Sutta Pitaka, Anguttara Nikaya (Numerical Discourses)