Culture is action, not words. - Jason Fried

What you do is your legacy.

People can’t get work done at work anymore. That turns life into work’s leftovers. The doggie bag. What’s worse is that long hours, excessive busyness, and lack of sleep have become a badge of honor for many people these days. Sustained exhaustion is not a badge of honor, it’s a mark of stupidity.

The solution: Break the big thing into smaller things. The smaller it is, the easier it is to estimate. You’re probably still going to get it wrong, but you’ll be a lot less wrong than if you estimated a big project. If something takes twice as long as you expected, better to have it be a small project that’s a couple weeks over rather than a long one that’s a couple months over.