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Of course there is such a thing as too much doubt, for we ought to accept what is true. But there is also such a thing as proper doubt, for we ought not accept what is false. The possibility of doubt is inherent in the longing to understand, and nothing less than complete and perfect knowledge can satisfy the mind. We do not possess such knowledge here on earth; it is reserved for the beatific vision. Until then, doubt will be with us. This is..why it is so unreasonable to trust only what cannot be doubted, as Descartes proposed, because everything can be doubted. We should believe, not what we cannot doubt, but what we have the best reasons to believe. .J. Budziszewski
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Are we really moral monkeys? I don't think so. We only strike the nihilist pose selectively, to put to shame rules we no longer try to keep. When it suits us, we can be quite Puritanical: Right and wrong are in the eye of the beholder, .' The veneer is skeptical, but the core is rigid and punitive. The whole affair looks more like a fence around conduct that cannot bear close examination, than like a serious intellectual position. The whole idea of a moral law is that it binds us whether we like it or not. If it really were just a social convention —< then it wouldn't be morality. >St. Thomas denies that the basic structure of morality is a construct. It is not rooted in human will and power. Rather it is rooted in nature, in structure of creation, in the constitution of the human person — in something we cannot change by human will and power. The good and the right are not things we invent, but things we discover. They are not constructs, but gifts. These gifts are the fount of the law. .J. Budziszewski
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Atheist: 'I hear the voice of conscience, but I deny the reality of God.' St. Thomas: 'That is like listening to someone speak, but denying that anyone is there.' Atheist: 'That's right; nobody is.' St. Thomas: 'Then you deny not only God but conscience, because you consider it a hallucination.' Atheist: 'I misspoke. What I meant to say is that when I am listening to conscience, I am really listening to myself.' St. Thomas: 'Then you still deny conscience, because you deny its authority to judge you. Instead you claim to judge yourself, but no one can be judge in his own case.J. Budziszewski