“Be strong, be brave, be true. Endure.”
Source: Zeitoun
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Dave Eggers 91
memoirist, novelist, short story writer, editor, publisher 1970Related quotes

“It is a strong castle, and strongly guarded; but there is no impossibility to brave men.”
Quentin Durward (1823), Ch. 3.
“The battle, sir, is not to the strong alone; it is to the vigilant, the active, the brave.”
This is also sometimes quoted as "The millions of people, armed in the holy cause of liberty".
1770s, "Give me liberty, or give me death!" (1775)
Context: They tell us, sir, that we are weak; unable to cope with so formidable an adversary. But when shall we be stronger? Will it be the next week, or the next year? Will it be when we are totally disarmed, and when a British guard shall be stationed in every house? Shall we gather strength by irresolution and inaction? Shall we acquire the means of effectual resistance by lying supinely on our backs and hugging the delusive phantom of hope, until our enemies shall have bound us hand and foot?
Sir, we are not weak if we make a proper use of those means which the God of nature hath placed in our power. Three millions of people, armed in the holy cause of Liberty, and in such a country as that which we possess, are invincible by any force which our enemy can send against us. Besides, sir, we shall not fight our battles alone. There is a just God who presides over the destinies of nations, and who will raise up friends to fight our battles for us. The battle, sir, is not to the strong alone; it is to the vigilant, the active, the brave.

“Sorrow and silence are strong, and patient endurance is godlike.”
Part II, section 1.
Evangeline: A Tale of Acadie (1847)

“Darkness is strong, and so is Sin,
But surely God endures forever.”
Villa Franca.
Bartlett's Familiar Quotations, 10th ed. (1919)

“You're so brave, Eva. So strong and honest. You're a miracle. My miracle.”

“When they saw Patroklos dead
— so brave and strong, so young —
the horses of Achilles began to weep”
The Horses of Achilles http://www.cavafy.com/poems/content.asp?id=134&cat=1
Collected Poems (1992)
Context: When they saw Patroklos dead
— so brave and strong, so young —
the horses of Achilles began to weep;
their immortal nature was upset deeply
by this work of death they had to look at.

[When Cory’s gone, https://www.economist.com/united-states/2013/08/17/when-corys-gone, The Economist, 21 August 2018, August 17, 2013]
2013