“Don't pay any attention to those who talk behide your back, it simply means you're two steps ahead”
“Remember if people talk behind your back, it only means you are two steps ahead.”
“I don't like phones. You can't be sure people are paying attention to you when you're talking to them.”
“Don't for heaven's sake, be afraid of talking nonsense! But you must pay attention to your nonsense.”
“If people talk behind your back, it's because you're ahead of them.”
“Experience means nothing unless you're paying attention.”