Today Oprah featured guests with terminal cancer, including Professor Randy Pausch (pic), now famous for his "last lecture" at Carnegie-Mellon. Among other advice, Prof. Pausch included importance of knowing how to apologize properly.
"When you screw up, apologize. A good apology has three parts ....
1. I'm sorry.
2. It was my fault.
3. How do I make it right?
Most people skip that third part; but that's how you can tell sincerity".