“It is interesting to note that Newton was not impressed by Descartes' great argument for God's existence derived from the idea of a perfect Being, nor by other metaphysical arguments that we have mentioned; yet Newton's own arguments for God's existence from the uniformity and suitability of different parts of the universe would not have seemed like proofs to Descartes.”

“What can we say about metaphysical naturalism? Again, I want to make two points.
# My arguments for the existence of God show that metaphysical naturalism is not true. There is a personal, transcendent reality beyond the physical universe.
# Secondly, I think that metaphysical naturalism is so contrary to reason and experience as to be absurd.
In the following arguments, the first premise in every case is taken from [https://en.wikipedia.org/wiki/Alexander_Rosenberg Dr. Rosenberg]’s own book.”

“St. Anselm argued that since we can imagine a perfect being, he must exist—because he would not be perfect without the added perfection of existence. This so-called ontological argument was more or less promptly attacked on two grounds: (1) Can we imagine a completely perfect being? (2) Is it obvious that perfection is augmented by existence? To the modern ear such pious arguments seem to be about words and definitions rather than about external reality.”

“The argument goes something like this: "I refuse to prove that I exist," says God, "for proof denies faith, and without faith I am nothing.”

“Theological arguments are supposed to provide ‘explanations’ for the existence of God. That means these arguments ought to persuade and make anyone who does not know about God to at least understand that God exists. But unfortunately, this is not the case. Anyone who takes a critical look at the theological arguments would really wonder what those who advanced these explanations had in mind.”

“Isaac Newton deserves to be included in a series of companions to major philosophers even though he was not a philosopher in the sense in which Descartes, Locke, and Kant were philosophers. That is, Newton made no direct contributions to epistemology or metaphysics that would warrant his inclusion in the standard list of major philosophers of the seventeenth and eighteenth centuries – Descartes, Spinoza, Locke, Leibniz, Berkeley, Hume, and Kant – or even in a list of other significant philosophers of the era – Bacon, Hobbes, Arnauld, Malebranche, Wolff, and Reid. The contributions to knowledge that made Newton a dominant figure of the last millennium were to science, not to philosophy.”

“Newton's proof of the law of refraction is based on an erroneous notion that light travels faster in glass than in air, the same error that Descartes had made. This error stems from the fact that both of them thought that light was corpuscular in nature.”

“Euclid's manner of exposition, progressing relentlessly from the data to the unknown and from the hypothesis to the conclusion, is perfect for checking the argument in detail but far from being perfect for making understandable the main line of the argument.”

“Why do people argue? Even the wisest of men have not found God through argument! Is God a subject for argument?”

“Indeed, all idealism derives from Descartes, or from Kant, or from both together, and whatever other distinguishing features a system may have, it is idealist to the extent that, either in itself, or as far as we are concerned, it makes knowing the condition of being.”