At home, Colbert is a doting father who makes sure his kids do not see the other Colbert — he only rarely let his kids watch the show.
"It's just like a pure silly thing. But you know, I truck in insincerity. With a very straight face, I say things I don't believe," Colbert tells Safer.
"Kids can't understand irony or sarcasm, and I don't want them to perceive me as insincere," Colbert says, "Because one night, I'll be putting them to bed and I'll say ... 'I love you, honey.' And they'll say, 'I get it. Very dry, Dad. That's good stuff,'" jokes Colbert.
Meantime, insincerity is paying big dividends and playing to more than a million people a night.
"Is there any possibility of the danger of you starting to believe yourself?" Safer asked.
"I hope so," Colbert replied. "I think that's the only hope that I'll actually do this job right — if I begin to believe my own line of crap."