"The happiness maximizing number of sexual partners is one." http://ac.els-cdn.com/S0167268115000050/1-s2.0-S0167268115000050-main.pdf?_tid=0508d7a2-a178-11e4-bcd8-00000aab0f01&acdnat=1421849938_0a9f818e35638190213107319b70f12c …
6:19 AM - 21 Jan 2015
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