Letter II 
The Nemesis of Faith (1849) 
Context: I know but one man, of more than miserable intellect, who in these modern times has dared defend eternal punishment on the score of justice, and that is Leibnitz; a man who, if I know him rightly, chose the subject from its difficulty as an opportunity for the display of his genius, and cared so little for the truth that his conclusions did not cost his heart a pang, or wring a single tear from him. And what does Leibnitz say? That sin, forsooth, though itself be only finite, yet, because it is against an Infinite Being, contracts a character of infinity, and so must be infinitely punished. It is odd that the clever Leibnitz should not have seen that a finite punishment, inflicted by the same Infinite Being, would itself of course contract the same character of infinity.
                                    
“A man who dares to waste one hour of time has not discovered the value of life.”
            volume I, chapter VI: "The Voyage",  page 266 http://darwin-online.org.uk/content/frameset?pageseq=284&itemID=F1452.1&viewtype=image; letter to sister Susan Elizabeth Darwin (4 August 1836) 
The Life and Letters of Charles Darwin (1887) 
Source: The Life & Letters of Charles Darwin
        
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Charles Darwin 161
British naturalist, author of "On the origin of species, by… 1809–1882Related quotes
from Dale Carnegie’s Scrapbook, ed. Dorothy Carnegie, as cited in Words of Wisdom https://en.wikiquote.org/wiki/Special:BookSources/0671695878, William Safire & Leonard Safir, Simon and Schuster (reprint, 1990), p. 87
“The man who views the world at 50 the same as he did at 20 has wasted 30 years of his life.”
Interview in Playboy magazine (November 1975)
Faith's Checkbook entry for June 22.
Source: The Shoes of Happiness, and Other Poems (1913), The Crowning Hour, III
“One's life has value so long as one attributes value to the life of others.”
                                        
                                        Letter to A.S. Suvorin (May 14, 1889) 
Letters