The man can easily beget over a hundred children a year; the woman, on the contrary, with however many men, can yet only bring one child a year into the world (leaving twin births out of account).
 Arthur Schopenhauer, The World as Will and Representation (1819). copy citation

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Author Arthur Schopenhauer
Source The World as Will and Representation
Topic birth women
Date 1819
Language English
Reference
Note Translated by R. B. Haldane and J. Kemp
Weblink http://www.gutenberg.org/files/40868/40868-h/40868-h.html

Context

“The love of the woman, on the other hand, increases just from that moment. This is a consequence of the aim of [pg 351] nature which is directed to the maintenance, and therefore to the greatest possible increase, of the species. The man can easily beget over a hundred children a year; the woman, on the contrary, with however many men, can yet only bring one child a year into the world (leaving twin births out of account). Therefore the man always looks about after other women; the woman, again, sticks firmly to the one man; for nature moves her, instinctively and without reflection, to retain the nourisher and protector of the future offspring.” source