Because you've given so much of yourself to the company that you don't have anything left we can use.
Retirement is like rotary telephones and mimeograph machines: if you’re under 30, don’t worry about it. It’s never going to come up for you.
Instilling the self-confidence kids will need to carry them through all the failure they'll experience because they weren't taught competence instead.
Because there's nothing standing between you and your goal but a total lack of talent and complete failure of will.