Source: From the Notebooks of Dr. Brain (2007), Chapter 8 “Unrequited Hate” (p. 251)
“Blessed is the healthy nature; it is the coherent, sweetly co-operative, not incoherent, self-distracting, self-destructive one!”
1830s, Sir Walter Scott (1838)
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Thomas Carlyle 481
Scottish philosopher, satirical writer, essayist, historian… 1795–1881Related quotes

“Altruism is masked self-interest. Aggressive self-interest is a masked urge to self-destruction.”
Source: The Forge of God (1987), Chapter 52 (p. 352)

Spoke on the occasion of the Economic Conference held during Dussera festival 1911 which brought wide awareness of the people on the effectiveness of Cooperative Societies. Modern_Mysore, Dr. B. R. Ambedkar Open University, 26 November 2013, archive.org, 206-07 http://archive.org/stream/modernmysore035292mbp/modernmysore035292mbp_djvu.txt,
As ruler of the state

Source: Human Nature and the Social Order, 1902, p. 209

“Self-control and resistance to distractions. Optimism in adversity—especially illness.”
Hays translation
I, 15
Meditations (c. AD 121–180), Book I
The Greening of America turns 40 (2010)
Context: I see self-destruction now on a grand scale. That is, the unwillingness to pay for the things society needs. That's the most basic kind of self-destruction. That we're not prepared to pay for schools, we're not prepared to pay for highways. That is self-destruction. What are we doing to ourselves? It is nuts.