“For we are not enemies, but brethren.”

Source: https://www.youtube.com/watch?v=xiLR4sCgvnc
Context: But now, let’s give each other a chance.
It’s time to put away the harsh rhetoric.
To lower the temperature.
To see each other again.
To listen to each other again.
To make progress, we must stop treating our opponents as our enemy.
We are not enemies. We are Americans.

2000s, Where the Right Went Wrong (2004)

The historical extempore speech at the Reserve Officers' College (1959)

1950s, What Desires Are Politically Important? (1950)
Context: We love those who hate our enemies, and if we had no enemies there would be very few people whom we should love.
All this, however, is only true so long as we are concerned solely with attitudes towards other human beings. You might regard the soil as your enemy because it yields reluctantly a niggardly subsistence. You might regard Mother Nature in general as your enemy, and envisage human life as a struggle to get the better of Mother Nature. If men viewed life in this way, cooperation of the whole human race would become easy. And men could easily be brought to view life in this way if schools, newspapers, and politicians devoted themselves to this end. But schools are out to teach patriotism; newspapers are out to stir up excitement; and politicians are out to get re-elected. None of the three, therefore, can do anything towards saving the human race from reciprocal suicide.

Source: https://www.youtube.com/watch?v=yDmTJXtfiKM

Preface, p. x.
The Revival of Aristocracy (1906)

[catches himself] "'Enemy server', what? Let's try that again—empty server. I do want enemies."
WTF Is…? series, Insurgency (standalone) (January 29, 2014)

WTF Is…? series, Insurgency (standalone) (January 29, 2014)

Source: A Song for Arbonne