“Now the first attribute of God is that He is true and the Giver of all light; it is hence quite contrary to His nature to deceive us. Hence the light of nature or the power of acquiring knowledge given us by God can affect no object which is not really true in as far as it is affected by it” (the power of acquiring knowledge) “_i.e._ as it is perceived clearly and distinctly.” We ascribe truth to God. From this Descartes goes on to infer the universal bond which exists between absolute knowledge and the objectivity of what we thus know. Knowledge has objects, has a content which is known; we call this connection truth. The truth of God is just this unity of what is thought by the subject or clearly perceived, and external reality or existence. “Thereby an end is put to doubt, as if it could be the case that what appears quite evident to us should not be really true. We can thus no longer have any suspicion of mathematical truths. Likewise if we give heed to what we distinguish by our senses in waking or in sleeping, clearly and distinctly, it is easy to recognize in each thing what in it is true.” By saying that what is rightly and clearly thought likewise is, Descartes maintains that man comes to know by means of thought what in fact is in things; the sources of errors lie on the other hand in the finitude of our nature. “It is certain, because of God’s truth, that the faculty of perceiving and that of assenting through the will, if it extends no further than to that which is clearly perceived, cannot lead to error. Even if this cannot be in any way proved, it is by nature so established in all things, that as often as we clearly perceive anything, we assent to it from ourselves and can in no wise doubt that it is true.”[176]