Source: What Is This Thing Called Science? (Third Edition; 1999), Chapter 5, Introducing falsification, p. 67.
“concessions to adversaries only end in self reproach, and the more strictly they are avoided the greater will be the chance of security.”
Book I, 1.34-[3]
History of the Peloponnesian War, Book I
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Thucydides 76
Greek historian and Athenian generalRelated quotes

“Men who can hear the Decalogue, and feel
To self-reproach.”
The Old Cumberland Beggar.
Bartlett's Familiar Quotations, 10th ed. (1919)

Source: Aphorisms and Reflections (1901), p. 226

Wu Po-hsiung (2013) quoted in: " Taiwan, China should put aside disputes: KMT’s Wu http://www.taipeitimes.com/News/taiwan/archives/2013/09/19/2003572505" in Taipei Times 19 September 2013.
Statements were made during the visit of Yunnan Communist Party of China secretary, Qin Guangrong, and his delegation to Taiwan in September 2013.
Wu lauds DPP’s China department (2012)
Ch 29
A Canticle for Leibowitz (1959), Fiat Voluntas Tua

There Is a Tide (p. 206)
Short fiction, Tales of Known Space (1975)

“The aim of the wise is not to secure pleasure, but to avoid pain.”

Source: The Blue Book of Freedom: Ending Famine, Poverty, Democide, and War (2007), p. 13

The Herald Times (1988) http://www.samedia.uovs.ac.za/cgi-bin/getpdf?id=1030957.
Sanctions and disinvestment from South Africa

Letter to The Times (23 July 1956), p. 9
1950s