Le darwinisme et l'évolution de l'homme. ofevidence examen conscient . Cet examen, en effet, a pour fonction de son tolimit notre impulsion spontanée de généralisation et d'restrainwithin limites juste l'espoir que l'inconnu s'resemblethe connu. Lorsque nous sommes directement conscient d'une chose, la preuve et les croyances sont une seule et même chose. Dans tous les autres cas, la croyance est fondée sur la constance de thecourse de la nature ; il est basé sur le postulat de l'thepersistence universel de la force. Quoi qu'il en est que nous croyons, la justification de l'être beliefmust, qu'à moins qu'il wer

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Darwinism and the evolution of man . conscious consideration ofevidence. Such consideration, indeed, has for its function tolimit our spontaneous impulse of generalisation, and to restrainwithin just bounds our expectation that the unknown will resemblethe known. When we are directly conscious of a thing, the evidence andthe belief are one and the same thing. In all other cases, belief is grounded on the constancy of thecourse of Nature ; it is based on the universal postulate of thepersistence of force. Whatever it is that we believe, the justification of the beliefmust be, that unless it were true the uniformity of the course ofnature would not be maintained. It is not meant by uniformity that Nature has never knowncataclysms or convulsions. The submergence of a continent, theoutburst of molten lava, the terrible break-up of a glacial period, take place in a strict conformity to law. The ascent of a balloonis in accordance with the same law of gravitation which governsthe earths orbit and occasions the fall of a stone.. ^^^^S^^^^^^^3P^^S DARWINISM And now what is Darwinism ? It shall be told in the words ofthe master himself. If, under changing conditions of life, organic beings present individual differences in almost every part of their structure, and this cannot be disputed; if there be, owing to their geometrical rate of increase, a severe struggle for life at some age, season, or year, and this certainly cannot be disputed ; then, considering the infinite complexity of the relations of all organic beings to each other and to their conditions of life, causing an infinite diversity in structure, constitution, and habits to be advantageous to them, it would be a most extraordinary fact if no variations had ever occurred useful to each beings own welfare, in the same manner as so many variations have occurred that have been useful to man. But if variations useful to any organic being ever do occur, assuredly individuals thus characterised will have the best chance

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