To add to the many excellent answers, I will add:
- "Just get started," which is a prerequisite to "Just do it." When a task seems too difficult at first, if you start trying to solve it, you often find it's a lot easier than you imagined.
- Not all procrastination is bad. It can sometimes be good to delay important decisions until you have enough information. It can be good to work on the more pressing things, and put off the things that are less important.