The people who advocate "balls to the wall" practices and "not making it home for dinner every night" scare me.

When it's all said and done, and you're ready to leave this world, what are you going to think about? Who are you going to want by your side? What are you going to care about?

If it's all the amazing startups you created, or the enormous sums of money you made, or the years of never making it home for dinner to see your wife/husband/kids/dog/whoever, then you're on the right track.

But if at the end of the day, life means more to you than ferociously competing to see who can work more hours in a week, why the hell are you doing this?