Page:Discourse on the method of rightly conducting the reason, and seeking truth in the sciences - Descartes (trans. Veitch).djvu/38

 with the laws of thought is a sufficient guarantee of the real existence of the thing, in other words, of the matter of the thought. In the present instance, the demonstration proceeds on the principle of identity; for merely because is thought under the notion necessary existence, in other words, because it is clearly thought that the notion is equal to its character or itself, it is concluded that Deity is really existent. Such procedure in identifying what is possible in thought with what is actual in existence is of course wholly illegitimate.