“we know that there can never be any solid friendship between individuals, or union between communities that is worth the name, unless the parties be persuaded of each others honesty”
Book III, 3.10-[2]
History of the Peloponnesian War, Book III
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Thucydides 76
Greek historian and Athenian generalRelated quotes

“The difference between friendship and love is how much you can hurt each other.”

As quoted in Beverley Male (1982) Revolutionary Afghanistan: A Reappraisal, page 183

1930s, Address at the Democratic State Convention, Syracuse, New York (1936)
Context: Desperate in mood, angry at failure, cunning in purpose, individuals and groups are seeking to make Communism an issue in an election where Communism is not a controversy between the two major parties.
Here and now, once and for all, let us bury that red herring, and destroy that false issue. You are familiar with my background; you know my heritage; and you are familiar, especially in the State of New York, with my public service extending back over a quarter of a century. For nearly four years I have been President of the United States. A long record has been written. In that record, both in this State and in the national capital, you will find a simple, clear and consistent adherence not only to the letter, but to the spirit of the American form of government.

Source: McGeachin talks plans going forward as Idaho’s new Lt. Governor https://www.eastidahonews.com/2018/11/mcgeachin-talks-plans-going-forward-as-idahos-new-lt-governor/ (November 12, 2018)

In reference to the Alabama Council on Human Relations, an organization which was joined by King, whose church's meeting room was used to hold monthly meetings for the Montgomery chapter the council. Stride Toward Freedom: The Montgomery Story (1958)
1950s
Context: Although the Montgomery council never had a large membership, it played an important role. As the only truly interracial group in Montgomery, it served to keep the desperately needed channels of communication open between the races.
Men often hate each other because they fear each other; they fear each other because they don't know each other; they don't know each other because they can not communicate; they can not communicate because they are separated. In providing an avenue of communication, the council was fulfilling a necessary condition for better race relations in the South.

Source: Moral Man and Immoral Society (1932), pp. 8-9
Context: The inevitable hypocrisy, which is associated with the all the collective activities of the human race, springs chiefly from this source: that individuals have a moral code which makes the actions of collective man an outrage to their conscience. They therefore invent romantic and moral interpretations of the real facts, preferring to obscure rather than reveal the true character of their collective behavior. Sometimes they are as anxious to offer moral justifications for the brutalities from which they suffer as for those which they commit. The fact that the hypocrisy of man's group behavior... expresses itself not only in terms of self-justification but in terms of moral justification of human behavior in general, symbolizes one of the tragedies of the human spirit: its inability to conform its collective life to its individual ideals. As individuals, men believe they ought to love and serve each other and establish justice between each other. As racial, economic and national groups they take for themselves, whatever their power can command.