Editing Golden ratio (section)

===Nature===
[[File:Aeonium tabuliforme.jpg|thumb|upright|Detail of the saucer plant, ''[[Aeonium tabuliforme]]'', showing the multiple spiral arrangement ([[parastichy]])]]
{{main|Patterns in nature}}
{{see also|Fibonacci number#Nature}}

Johannes Kepler wrote that "the image of man and woman stems from the divine proportion. In my opinion, the propagation of plants and the progenitive acts of animals are in the same ratio".{{sfn|Livio|2002|p=[https://archive.org/details/goldenratiostory00livi/page/154 154]}}

The psychologist [[Adolf Zeising]] noted that the golden ratio appeared in [[phyllotaxis]] and argued from these [[patterns in nature]] that the golden ratio was a universal law.<ref name=padovan /> Zeising wrote in 1854 of a universal [[orthogenesis|orthogenetic]] law of "striving for beauty and completeness in the realms of both nature and art".<ref name=zeising />

However, some have argued that many apparent manifestations of the golden ratio in nature, especially in regard to animal dimensions, are fictitious.<ref name=pommersheim />