Related:

• Bart: [on the phone] Yes, Dad, I solemnly swear I will not tell another living soul.
  ... No, not even Millhouse. [hangs up] [intense, but brief, mental struggle] [dials phone] Hello, Millhouse?...
• Some people can tell what time it is by looking at the sun.
  But I have never been able to make out the numbers....
• Three can keep a secret if two of them are dead. Benjamin Frankli
• Captain, how soon can we land?" "I can't tell." "You can tell me; I'm a doctor." -- Airplane!
• Homer: What's wrong, honey? Lisa: There's something troubling me, dad, but I don't think I can tell you because it's a secret.
  Homer: Ah, you don't have to tell me, but I thought we trusted each other with our secrets now....
• Our cause is a secret within a secret, a secret that only another secret can explai
  it is a secret about a secret veiled by a secret....
• Can you tell I need more tag lines?
• I can tell you in two words: im possible. -- Samuel Goldwy
• I can tell you're lying. Your lips are moving.