Favorite motto or snappy comeback?

My best one came from my Dad.

"Never trust something that bleeds for seven days and doesn't die."

Let's pretend I am "Burger King" and you are "McDonald's". We will be getting things done "My way." and you will be "Loving it."

I had a 1SG who used to tell all the soldiers whom in-processed into the unit that he had three rules for them, and thru would succeed and even thrive under his command.
1. Never pass up the opportunity to shut the f&@k up. Everyone around you has t-shirts with more combat time than you have, period, in this man's army.
2. You are already a hero. If you want medals, all you have to do is to do your job, without being told to, and you will shortly outrank everyone around you.
3. Stupid people lose sleep. You only get paid, and have time allotted, to touch it once. Anything else will happen on your time, because dollars don't wait on dimes. "E-8's don't wait on E-3's"... Ever!