“It is not death that a man should fear, but he should fear never beginning to live.”
Marcus Aurelius, p. 225
They Both Die at the End (2017)
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Adam Silvera 6
American author 1990Related quotes

“Why should man be afraid to think, and why should he fear to express his thoughts?”
Heretics and Heresies (1874)
Context: Why should man be afraid to think, and why should he fear to express his thoughts?
Is it possible that an infinite Deity is unwilling that a man should investigate the phenomena by which he is surrounded? Is it possible that a god delights in threatening and terrifying men? What glory, what honor and renown a god must win on such a field! The ocean raving at a drop; a star envious of a candle; the sun jealous of a fire-fly.

Section 8 : Suffering and Consolation
Founding Address (1876), Life and Destiny (1913)
Context: It is written that the last enemy to be vanquished is death. We should begin early in life to vanquish this enemy by obliterating every trace of the fear of death from our minds. Then can we turn to life and fill the whole horizon of our souls with it, turn with added zest toall the serious tasks which it imposes and to the pure delights which here and there it affords.

“The fear of death is the beginning of slavery.”
Source: The Golden Apple

Futurist Ray Kurweil Bring Dead Father Back to Life http://abcnews.go.com/Technology/futurist-ray-kurzweil-bring-dead-father-back-life/story?id14267712 (2011)

Not by Twain, but from Edward Abbey's A Voice Crying In The Wilderness (1989).
Misattributed