“For in order to be born again, you must die.”

Source: The Five People You Meet in Heaven

Through A Glass, Darkly (1918)
Context: So as through a glass, and darkly
The age long strife I see
Where I fought in many guises,
Many names, but always me. And I see not in my blindness
What the objects were I wrought,
But as God rules o'er our bickerings
It was through His will I fought. So forever in the future,
Shall I battle as of yore,
Dying to be born a fighter,
But to die again, once more.

Source: Nova (1968), Chapter 5 (p. 156)

Videla in 1975, as quoted in Adam Bernstein (May 17 2013). "Jorge Rafael Videla, ruthless Argentine junta leader, dies at 87". The Washington Post.

The Tragic Sense of Life (1913), XI : The Practical Problem
Context: And what is its moral proof? We may formulate it thus: Act so that in your own judgment and in the judgment of others you may merit eternity, act so that you may become irreplaceable, act so that you may not merit death. Or perhaps thus: Act as if you were to die tomorrow, but to die in order to survive and be eternalized. The end of morality is to give personal, human finality to the Universe; to discover the finality that belongs to it — if indeed it has any finality — and to discover it by acting.

Orders to the 57th Infantry Regiment, at the Battle of Gallipoli (25 April 1915); as quoted in Studies in Battle Command http://www.au.af.mil/au/awc/awcgate/army/csi-battles.htm by Combat Studies Institute, US Army Command and General Staff College, p. 89; also quoted in Turkey (2007) by Verity Campbell, p. 188
Variant translation: I am not ordering you to fight, I am ordering you to die.
Context: Men, I am not ordering you to attack. I am ordering you to die. In the time that it takes us to die, other forces and commanders can come and take our place.