Ken Follett said this quote

the war taught me that nothing counts as much as loyalty Bullshit. you still haven't learned that when humans are under pressure, we're all willing to lie even to the people we care? we lie more to our loved ones, because we care about them so damn much. why do you think we tell the truth to priests and shrinks and total strangers we meet on trains? it's because we don't love them, so we don't care what they think.