Computer-Aided Design: A Statement of Objectives (1960)
“If thou canst not hold the golden mean, say and do too little rather than too much.”
Source: Aphorisms and Reflections (1901), p. 178
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John Lancaster Spalding 202
Catholic bishop 1840–1916Related quotes
“We do not desire too much, but too little.”
The Divine Commodity: Discovering A Faith Beyond Consumer Christianity (2009, Zondervan)

Wir haben nicht zuviel Verstand und zu wenig Seele, sondern wir haben zu wenig Verstand in den Fragen der Seele.
Helpless Europe (1922)

Inaugural address (4 March 1921).
1920s
Source: The Greening of America (1970), Chapter IV : Consciousness II, p. 78

“A little too wise, they say, do ne’er live long.”
Act i. Sc. 1. Compare: "So wise so young, they say, do never live long", William Shakespeare, King Richard III, Act iii. Sc. 1.
The Phœnix (1603-4)

Poem Present in Absence http://www.bartleby.com/101/197.html
Attribution likely but not proven http://links.jstor.org/sici?sici=0026-7937(191107)6%3A3%3C383%3ATAO%22HT%3E2.0.CO%3B2-B
Source: Dictionary of Burning Words of Brilliant Writers (1895), P. 368.