We are discreet sheep; we wait to see how the drove is going, and then go with the drove. We have two opinions: one private, which we are afraid to express; and another one - the one we use - which we force ourselves to wear to please Mrs. Grundy, until habit makes us comfortable in it, and the custom of defending it presently makes us love it, adore it, and forget how pitifully we came by it. Look at it in politics.
Truth is more of a stranger than fiction. When in doubt, tell the truth. If you tell the truth, you don't have to remember anything. Most writers regard the truth as their most valuable possession, and therefore are economical in its use.