
Source: Why Is Sex Fun? The Evolution of Human Sexuality
Source: What the Bones Tell Us (1997), Ch. 1
Source: Why Is Sex Fun? The Evolution of Human Sexuality
Foreword to Bankrupting Nature: Denying Our Planetary Boundaries https://books.google.it/books?id=CxHuA5AZ92AC&pg=PR0 by Anders Wijkman and Johan Rockström (Abingdon, Oxon: Routledge, 2012), p. xi.
Source: Permaculture: A Designers' Manual (1988), chapter 4.8
Source: The Point of View of the Universe: Sidgwick and Contemporary Ethics (2017), p. 343
Page 107.
Thinking in Systems: A Primer (2008), Part two: systems and us
Mourning and Funerals—For Whom (1977)