No liberal man would impute a charge of unsteadiness to another for having changed his opinion.

Changing your mind when the facts change is the correct response, not a character flaw. Treating every revision as weakness produces people who defend positions they stopped believing years ago, simply because reversing would look bad. That pressure gets applied by others and then swallowed, until consistency matters more than being right. Everyone involved pays for it.

When someone in front of you shifts position, say the new view sounds better rather than reminding them what they used to think. Make your own changes out loud and without apology. A room where people can move is a room where the truth eventually arrives.