If they're going to remember the problem, make sure they remember it fondly.
How can you learn more? By admiring what you've done right? Or by studying what you've done wrong?
Quality is more than a promise, it's genuine performance.
Customers pay a price, but they remember the value.
Be confident enough to encourage confidence in others.
What's possible today isn't bound by what was possible yesterday, and is never a measure of what's possible tomorrow.