t efficient cause, there would be no intermediary and no last cause.Animal reproduction is great as a support to the second way. The parent is an efficient cause of a child. A couple can have a particular child. Our knowledge of DNA and genes would support that there are no accidents, and that The Father and The Mother are the efficient cause of the child. But we also know that a very important part of evaluation is an environment. Could environment be accidental? Instead of making a statement on accidentalness of the environment I would rather refer to St. Thomas’s fifth way. In fifth proof Aquinas talks about the universe and how things are governed. He argues that ‘natural bodies’ (environment) rich their ends by ‘intention’. Which means that environment is not accidental ether. Therefor “man and sun beget man”. Using the example of parent-child series of causes we can see that something cannot be efficient cause of itself. ‘Such a thing would have to be prior to itself, which is impossible. Now it is impossible to go on forever in a series of efficient causes… if series goes on forever, then there will be no first efficient cause; and so there will be no final effect and no intermediate efficient cause, which is obviously false. Therefore it is necessary to posit some fist efficient cause, to which everyone gives the name ‘God’. ‘The third way is drawn from the possible and the necessary’, or contingent and necessary objects. Aquinas appeals to the fact that certain things are subject to generation and corruption to show that they are ‘possible’, i.e., capable of existing and not existing. Not all things can be of this kind, for that which has the possibility of not existing at some time does not exist. If, therefore, all things are capable of not existing, at some time there was nothing whatsoever. If that were so, even now there...
