“Again, in our enterprises we present the singular spectacle of daring and deliberation, each carried to its highest point, and both united in the same persons; although usually decision is the fruit of ignorance, hesitation of reflection.”
Book II, 2.40-[3]
History of the Peloponnesian War, Book II
Context: Again, in our enterprises we present the singular spectacle of daring and deliberation, each carried to its highest point, and both united in the same persons; although usually decision is the fruit of ignorance, hesitation of reflection. But the palm of courage will surely be adjudged most justly to those, who best know the difference between hardship and pleasure and yet are never tempted to shrink from danger. In generosity we are equally singular, acquiring our friends by conferring, not by receiving, favours.
Help us to complete the source, original and additional information
Thucydides 76
Greek historian and Athenian generalRelated quotes

Philip Nicholas Shuttleworth (1782–1842) http://openlibrary.org/a/OL4475476A/Philip-Nicholas-Shuttleworth, bishop of Chichester, in an address "Christ's Yoke Easy and Burden Light", published in The Sunday Library; or, The Protestant's Manual for the Sabbath-day (1831) http://books.google.com/books?id=sd0EAAAAQAAJ by Thomas Frognall Dibdin; this seems to have become misattributed to Channing in A Dictionary of Thoughts (1908) by Tryon Edwards
Misattributed

Fourth Annual Message to Congress (5 December 1848) http://memory.loc.gov/cgi-bin/query/r?ammem/hlaw:@field(DOCID+@lit(sj0404)).

Source Book in Ancient Philosophy (1907), The Fragments

“We're one but we're not the same
We get to carry each other, carry each other”
"One"
Lyrics, Achtung Baby (1991)

As quoted in A Question of Physics: Conversations in Physics and Biology (1979), Paul Buckley and F. David Peat, Routledge and Kegan Paul, London, p. 29.

2016, Statement on the Shootings in Baton Rouge (July 2016)
Context: Five days ago, I traveled to Dallas for the memorial service of the officers who were slain there. I said that that killer would not be the last person who tries to make us turn on each other. Nor will today’s killer. It remains up to us to make sure that they fail. That decision is all of ours. The decision to make sure that our best selves are reflected across America, not our worst -- that’s up to us.
Source: The Disreputable History of Frankie Landau-Banks