"Certain moral principles are not only right for all, but at some level know to all....our common moral knowledge is as real as arithmetic, and probably just as plain....The classical natural law thinkers held that although there are broad moral truths which cannot be blotted out of the heart of man, there are others, more remote from first principles, which can all too easily be blotted out - and the usual way to blot them out is bad living....two universals are in conflict: universal moral knowledge and universal desire to evade it" (pp. 15, 19, 25, 28).
What is this natural moral law or "natural law" all about? Budziszewski tells us that "a great many more or less satisfactory summaries have been proposed. Perhaps the simplest formula was suggested by Thomas Aquinas: `Good is to be done and pursued, and evil is to be avoided'....Good in his view is richly differentiated" (p. 47).
Budziszewski argues that, "Everyone knows inviolable goods like friendship, formal norms like fairness, and everyday moral rules like `Do not kill' - though we can pretend not to know them, and we sometimes err in what we derive from them. Everyone recognizes that the universe is designed and that we are designed - though we can refuse to pay attention, or pretend we haven't noticed. Everyone recognizes the most obvious features of our design, for example the complementarity of the sexes and the spontaneous order of the family....everyone recognizes the most obvious inbuilt penalties of wrongdoing, for example that those who betray are not trusted....Not everyone feels guilty for murder, but everyone knows murder is wrong. Precisely because they have guilty knowledge, wrongdoers who lack guilty feelings show other telltales, such as depression, a sense of defect, a compulsion to rationalize, or a puzzling desire to be caught" (pp. 102, 118).
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