The typical imperative from biology is not "Thou shalt... ," but "If ... then ... else.
Steven Pinker (2009). “How the Mind Works”, p.27, W. W. Norton & Company
![The typical imperative from biology is not Thou shalt... , but If ... then ... else.](http://cdn.myquotes.org/images/steven-pinker/the-typical-imperative-from-biology-is-not-thou-shalt--but-if--then--else.jpg)
The typical imperative from biology is not "Thou shalt... ," but "If ... then ... else.