“Agitators and declaimers may heat the blood, but they do not illumine the mind.”
Source: Aphorisms and Reflections (1901), p. 261
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John Lancaster Spalding 202
Catholic bishop 1840–1916Related quotes

“Mind without agitation is meditation. Mind in the present moment is meditation.”
"What is Meditation?" (2006)
Context: Mind without agitation is meditation. Mind in the present moment is meditation. Mind that has no hesitation, no anticipation is meditation. Mind that has come back home, to the source, is meditation. Mind that becomes ‘‘no mind’’ is meditation.

Source: Sir William Herschel: His Life and Works (1880), Ch.4 "Life and Works" on his discovery of the infrared light.

Source: 2010s, Nomad: A Personal Journey Through the Clash of Civilizations (2010), Chapter 14, “Opening the Muslim Mind: An Enlightenment Mind” (p. 209)

Variant: To the illuminated mind the whole world burns and sparkles with light.

“The powers of the mind are like the rays of the sun when they are concentrated they illumine.”
Pearls of Wisdom

Source: 11/22/63 (2011), Chapter Final Notes, page 1030,(First Scribner hardcover edition November 2011)
Source: https://web.archive.org/web/20210722191755/https://libquotes.com/stephen-king/quote/lbj3k9y Archived] from [https://libquotes.com/stephen-king/quote/lbj3k9y the original