We must then be guided everywhere by natural affinities in composing the groups which result by dividing each kingdom into classes, each class into orders, each order into sections or families, each family into genera, and each genus into different species if there is occasion for it.


Translated by Hugh Elliot, Zoological Philosophy: An Exposition with Regard to the Natural History of Animals - Chapter II (p. 33)

Jean-Baptiste Lamarck Quotes

We must then be guided everywhere by natural affinities in composing the groups which result by dividing each kingdom into classes, each class into...

We must then be guided everywhere by natural affinities in composing the groups which result by dividing each kingdom into classes, each class into...

We must then be guided everywhere by natural affinities in composing the groups which result by dividing each kingdom into classes, each class into...

We must then be guided everywhere by natural affinities in composing the groups which result by dividing each kingdom into classes, each class into...