Pierre-Paul Grassé quotes
When we consider a human work, we believe we know where the "intelligence" which fashioned it comes from; but when a living being is concerned, no one knows or ever knew, neither Darwin nor Epicurus, neither Leibniz nor Aristotle, neither Einstein nor Parmenides. An act of faith is necessary to make us adopt one hypothesis rather than another. Science, which does not accept any credo, or in any case should not, acknowledges its ignorance, its inability to solve this problem which, we are certain, exists and has reality.
Pierre-Paul Grassé
Here we are, up to our ears in transcendence: Any organization or function is controlled by it. The building blocks for making living creatures are utilized by it. Thus, the entire world of living beings is transcended by phenomena that create finality. Natural selection working for the continuance and welfare of animals, plants, and man himself, is seen to be the grand law which organizes the living universe. So the Darwinians, who fancied they had exorcized finalism and transcendency but forgot to analyze critically the idea of natural selection, failed to see its implications or metaphysical consequences. They thought they were absolved from giving any finalization or deistic interpretation by decreeing that on earth all is but deceptive appearances; finality is a sham, guided evolution illusory. How is it possible to understand such an attitude?
Pierre-Paul Grassé
The immanent purpose is an intrinsic property of living beings, without it, they would not exist. Consider the autonomous function units and their components: organs, tissues, isolated cells, as well as other properties such as nutrition, body defense, growth, reproduction, to which they are subject at the end. When it comes to these properties, biologists do not argue; but if you pronounce the word purpose, there is a public outcry. Probably because they do not distinguish the purpose of fact or immanent, the trascendental purpose. Of the latter, the biologist has little or nothing to say; it is a matter of metaphysics.
Pierre-Paul Grassé
The study of contemporary species does not establish the existence of evolution; it provides facts which support it, but which do not fully demonstrate its existence. This is understandable, since at present we cannot show the series of successive stages which make up evolution, but only a fleeting picture of evolution.
Pierre-Paul Grassé
The philosopher considering the Universe in its entirety is led to admit that there is only one necessary, absolute being, God. All other beings are contingent; this is why Pascal said of himself: "I feel that I might not have been... therefore I am not a necessary being" (Pensées, No. 597). The proposition applies equally to every living thing.
Pierre-Paul Grassé
Through use and abuse of hidden postulates, of bold, often ill-founded extrapolations, a pseudoscience has been created. It is taking root in the very heart of biology and is leading astray many biochemists and biologists, who sincerely believe that the accuracy of fundamental concepts has been demonstrated, which is not the case.
Pierre-Paul Grassé
Through use and abuse of hidden postulates, of bold, often ill-founded extrapolations, a pseudoscience has been created. It is taking root in the very heart of biology and is leading astray many biochemists and biologists, who sincerely believe that the accuracy of fundamental concepts has been demonstrated, which is not the case. Wishing to point out this type of misconception, we quote P. T. Mora, an American biochemist, who writes about polysaccharides contained in the cell membrane:.
Pierre-Paul Grassé