“There are always those who take it upon themselves to defend God… These people fail to realize that it is on the inside that God must be defended, not on the outside.”

Final address (1973)
Context: The people must defend themselves, but they must not sacrifice themselves. The people must not let themselves be destroyed or riddled with bullets, but they cannot be humiliated either.
Workers of my country, I have faith in Chile and its destiny. Other men will overcome this dark and bitter moment when treason seeks to prevail. Keep in mind that, much sooner than later, great avenues will again be opened, through which will pass the free man, to construct a better society.
Long live Chile! Long live the people! Long live the workers!
These are my last words, and I am certain that my sacrifice will not be in vain, I am certain that, at the very least, it will be a moral lesson that will punish felony, cowardice, and treason.

Source: I Am Right You Are Wrong: From This to the New Renaissance: From Rock Logic to Water Logic

2000s, 2003, Invasion of Iraq (March 2003)

Source: The Stars My Destination (1956), Chapter 12 (p. 188).

Remarks by President Obama to U.S. Troops and Personnel at U.S. Army Garrison Yongsan in Seoul, Republic of Korea at April 26, 2014 http://www.whitehouse.gov/the-press-office/2014/04/26/remarks-president-obama-us-troops-and-personnel-us-army-garrison-yongsan
2014
Context: Freedom is not an accident. Progress is not an accident. Democracy is not an accident. These are things that have to be fought for. You’re part of that legacy. They must be won. And they’ve got to be tended to constantly and defended without fail.

Statement to Major Heros von Borcke http://aotw.org/officers.php?officer_id=1082 (13 December 1862), as quoted in Memoirs of the Confederate War for Independence (1867) by Heros von Borcke, p. 301; this has been paraphrased as "My troops may fail to take a position, but are never driven from one!"

Source: My Double Life (1907), Ch. 28 <!-- p. 324 -->
Context: Those who know the joys and miseries of celebrity when they have passed the age of forty know how to defend themselves. They are at the beginning of a series of small worries, thunderbolts hidden under flowers, but they know how to hold in check that monster advertisement. It is a sort of octopus with innumerable tentacles. It throws out to right and left, in front and behind, its clammy arms, and gathers in, through its thousand little suckers, all the gossip and slander and praise afloat, to spit out again at the public when it is vomiting its black gall. But those who are caught in the clutches of celebrity at the age of twenty two know nothing.

Source: Separation from the World, p. 4

Verse "Intended to allay the Violence of Party-Spirit"
Miscellaneous Poems (1773)