St. George Mivart (1827-1900) was a prolific writer on biological evolution and on its relevance to the Christian faith. His initial support for the evolutionary ideas put forward by Charles Darwin and Thomas Huxley would eventually turn into heavy criticism of these same ideas, evident in his 1871 book "On the Genesis of Species". This short paper critically evaluates the origins and development of his thinking that led to this book. It examines his paper "Difficulties of the Theory of (...) Natural Selection", published in 1869, and argues that, even though some of his technical observations about the theory are outdated, some of his philosophical arguments are still relevant today. (shrink)

Bergson offers an epistemological critique of Darwin’s theory that focuses on his gradualism: for Darwin variation is “minute”, and Bergson glosses “insensible.” His main argument is that if variations are insensible, they cannot confer an advantage to the organism and therefore be selected. Yet, for Darwin, the selected variation is not insensible: to be selected, it must be beneficial to its bearer in the struggle for existence. This article aims at understanding the origin of this misunderstanding by tracing the history (...) of this critique. To do this, we will study Bergson’s sources, showing that his interpretation of Darwin is in line with the critique of many biologists at the turn of the 20th century, albeit in a confused way. This will lead us back to the origin of this critique: the work of Mivart. In this study, we wish to reveal the anchor of the Bergsonian interpretation in the debates of his time, and the shifts from the traditional exposition of the argument that led Bergson to formulate this false paradox. This article will also analyze more precisely the counterexample of the “analogy of structure” to show that, despite Bergson’s misunderstanding, he did point to actual limits of the Darwinian theory. (shrink)