Girl A promotes abstinence but loses her virginity. Girl B, who does not like her, spreads that piece of information. That was a fact, but girl B also knows another piece of info. Girl A was raped, thus the reason for not being a virgin anymore.
Boy A likes to borrow money from people. Boy B, who is his friend, tells another person this who asks him about it. He acknowledges that it is a fact. The person decides not to lend Boy A the money. Boy B knows that Boy A always pays the money back, but he withholds this piece of info.
Two sets of facts, and two sets of truths. Sometimes some people have and know the facts, but not the truth. When this important element of a story is hidden, skewed, played down, agendas, lies, propaganda, intents and/or whatever you want to label it, is promoted.
We get it from governments, the news, have you seen some of the headlines, various entertainment outlets, family, friends, lovers, enemies, religious figures, the authorities, and yes, perhaps you and me. We have to make the conscience effort to have and know the facts, and then, not to retain the truth, should not we?
But what if there is a really, really good reason, not excuse, for wanting to keep the truth? Is there ever a good time to do so?