Christianity Today has reprinted a 1995 interview with the late William F. Buckley, Jr., in which he dispenses some timeless advice for Christian activists. An excerpt:

YOU BELIEVE THAT THERE IS A PLACE FOR RELIGIOUS CONVICTION TO INFORM POLICIES. WHAT PRINCIPLES SHOULD GUIDE CHRISTIAN ACTIVISTS AS THEY TRY TO INFLUENCE LEGISLATION?

Thomas Aquinas once was asked, “If the public view was that a famine was imminent, would you be justified in charging injurious prices for your grain, knowing that a relief wagon of grain was coming?” Thomas said yes, you would, but it would be wrong. A Christian would not do that.

Certain things which the market authorizes simply in terms of law are unchristian and ought not to be done. The big issue today has to do with the fidelity of marriages. The tendency now to leave your wife because you have an infatuation with a younger woman of tenderer flesh is an enormous temptation. It’s carnal, and it’s also easy to justify with all the solipsistic reasoning that we hear today. That is about the gravest offense that a human being can commit, to throw away a wife.

Go read the whole thing.