As he often does, Nietzsche omits a premise required by his syllogism, leaving to the reader the task of filling it in.
Let C = admitting a belief because it is a custom, let DCL = being dishonest, cowardly, and lazy, and let M = morality. Nietzsche’s observation takes this form:
If C, then DCL.
If DCL, then M.
Obviously, we’re missing a premise:
If M, then C.
By morality, Nietzsche seems to have in mind beliefs, values, and practices that are adhered to merely because it’s customary to do so. This is contrary to the leading principle of the Enlightenment, according to which something should be done only if it is rational to do it.
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