Do one thing, and do it great

Just a short note about a blog post I just read that really resonated with me:

Make Your Startup Great At One Thing by Jim Greco

He talks about the importance of doing one thing and one thing only. To be able to do that you need to know exactly what you are and what you're trying to accomplish. We our selves aims for that in every decision we make. It not an easy task and sometimes we fail, but the important thing is to know what to strive for.