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Preston, S. T. in correspondent 
1880-1889::1880::05 in date 
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From:
Samuel Tolver Preston
To:
Charles Robert Darwin
Date:
20 May 1880
Source of text:
DAR 174: 61
Summary:

Thanks for CD’s comments on his paper ["On a point relating to brain dynamics", Nature 22 (1880): 29–30].

Contends that self-interest as a motive for conduct is more salutary than is generally thought, and should be considered in the evolution of morality.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Samuel Tolver Preston
Date:
22 May 1880
Source of text:
DAR 147: 250
Summary:

Discusses ethics of risking one’s life to save another.

Contributor:
Darwin Correspondence Project