4. Another very frequent mistake bearing upon moral character deserves a passing notice here. Men sometimes manifest, and doubtless with a consciousness of inward sincerity, a very high regard for some one or more particular principles of virtue, while they manifest an equal disregard of all other principles. Every real reform, for example, has its basis in some great principle of morality. Men often advocate, with great zeal, such reforms, together with the principle on which they rest. They talk of virtue, when called to defend that principle, of a regard to moral obligation, together with the necessity of self-sacrifice at the shrine of duty, as if respect for universal rectitude commanded the entire powers of their being. Yet but a slight observation will most clearly evince, that their regard for the right, the true, and the good, is wholly circumscribed by this one principle. Still, such persons are very likely to regard themselves as virtuous in a very high degree. In reality, however, they have not made the first approach to real virtue. Their respect for this one principle, together with its specific applications, has its spring in some other department of their nature, than a regard for what is right in itself. Otherwise their respect for what is right, would be co-extensive with the entire range of moral obligation.