“2001. Find out thy own Mistakes, and Failings, in order to amend them. A Disease known is half cured.”
Introductio ad prudentiam: Part II (1727)
Help us to complete the source, original and additional information
Thomas Fuller (writer) 420
British physician, preacher, and intellectual 1654–1734Related quotes

“Government is a disease masquerading as its own cure.”
Financial Sense http://www.financialsense.com/fsu/editorials/steer/2007/0805.html Also quoted in “Covert Operation”, Jane Mayer, The New Yorker, (Aug. 30, 2010)

“We all labour against our own cure, for death is the cure of all diseases.”
Section 9
Religio Medici (1643), Part II
“Vivisection is the killing of animals to find cures for the diseases caused by eating animals.”
Quoted in William Harris, The Scientific Basis of Vegetarianism (1995), cap. XVII http://www.vegsource.com/harris/sci_basis/CHAP17.pdf.

Edward Young, "Night Thoughts," (1742-1745) Part IX http://www.litgothic.com/Texts/young_night_thoughts.pdf.
Misattributed

Reported in Josiah Hotchkiss Gilbert, Dictionary of Burning Words of Brilliant Writers (1895), p. 99.

The Notebooks of Leonardo da Vinci (1883), I Prolegomena and General Introduction to the Book on Painting

“For a desperate disease a desperate cure.”
Book II, Ch. 3. The Custom of the Isle of Cea
Essais (1595), Bartlett's Familiar Quotations, 10th ed. (1919)

“Cure the disease and kill the patient.”
Of Friendship
Essays (1625)
Variant: Cure the disease, and kill the patient.