But the latter no longer finds its model and guide in the former...

But the latter no longer finds its model and guide in the former, and must look on its own level for a rule which, nevertheless, will still be intellectual or “dianoetic”.’[^45] This integration is achieved, then, through prudence and practical truth: scientific research is still part of human action and, as such, is subject to the ethical rule of prudence, and to the service of the ultimate of man’s ends, happiness, which in turn consists in true knowledge, as well as co-existence[^46] and a moderate degree of welfare[^47] .

Science is rooted in human life, in practical values, in time and in experience through prudence, which is a virtue and is intellectual; or, more correctly, through the prudent person. Furthermore, this prudential conception of human reason is rooted in a very realistic, profound, fruitful and commonly accepted idea of human nature: ‘desiderative reason or ratiocinative desire’[^48] . Previous…