[paulc]

I have looked in the mirror every morning and asked myself: "If today were the last day of my life, would I want to do what I am about to do today?" And whenever the answer has been "No" for too many days in a row, I know I need to change something.

- Steve Jobs

A couple of years out of college I started living by this quote and it has worked out great for me.

[peacemaker]

I really enjoyed that speech too, in particular this quote.

It can be hard to live by that quote though, especially when you have a lot of responsibilities.