The second principle is adherence to custom, convention, and continuity.
"It is old custom that enables people to live together peaceably; the destroyers of custom demolish more than they know or desire. It is through convention—a word much abused in our time—that we contrive to avoid perpetual disputes about rights and duties: law at base is a body of conventions. Continuity is the means of linking generation to generation; it matters as much for society as it does for the individual; without it, life is meaningless. When successful revolutionaries have effaced old customs, derided old conventions, and broken the continuity of social institutions—why, presently they discover the necessity of establishing fresh customs, conventions, and continuity; but that process is painful and slow; and the new social order that eventually emerges may be much inferior to the old order that radicals overthrew in their zeal for the Earthly Paradise.
Conservatives are champions of custom, convention, and continuity because they prefer the devil they know to the devil they don’t know. Order and justice and freedom, they believe, are the artificial products of a long social experience, the result of centuries of trial and reflection and sacrifice. Thus the body social is a kind of spiritual corporation, comparable to the church; it may even be called a community of souls. Human society is no machine, to be treated mechanically. The continuity, the life-blood, of a society must not be interrupted. Burke’s reminder of the necessity for prudent change is in the mind of the conservative. But necessary change, conservatives argue, ought to be gradual and discriminatory, never unfixing old interests at once."
Taken from the Russel Kirk Center.