"At a certain stage in my reading, I naturally met with the principal works of Machiavelli. They made a deep and lasting impression upon me, and shook my earlier faith. I derived from them not the most obvious teachings [...] but something else. Machiavelli was not a historicist: he thought it possible to restore something like the Roman Republic or Rome of the early Principate. He believed that to do this one needed a ruling class of brave, resourceful, intelligent, gifted men who knew how to seize opportunities and use them, and citizens who were adequately protected, patriotic, proud of their State, epitomes of manly, pagan virtues. [...] But Machiavelli also sets side by side with this the notion of Christian virtues – humility, acceptance of suffering, unworldliness, the hope of salvation in an afterlife – and he remarks that if, as he plainly himself favours, a State of a Roman type is to be established, these qualities will not promote it: those who live by the precepts of Christian morality are bound to be trampled on by the ruthless pursuit of power on the part of men who alone can re-create and dominate the republic which he wants to see. He does not condemn Christian virtues. He merely points out that the two moralities are incompatible, and he does not recognise an overarching criterion whereby we are enabled to decide the right life for men. The combination of virtù and Christian values is for him an impossibility. He simply leaves you to choose – he knows which he himself prefers. The idea that this planted in my mind was the realisation, which came as something of a shock, that not all the supreme values pursued by mankind now and in the past were necessarily compatible with one another. It undermined my earlier assumption, based on the philosophia perennis, that there could be no conflict between true ends, true answers to the central problems of life."
January 1, 1970
https://en.wikiquote.org/wiki/Niccol%C3%B2_Machiavelli