You can achieve anything you want in your life. 

You can build the career you want, you can write and publish a book, you can become a yoga instructor, you can travel the world, you can learn how to play the guitar and you can learn how to speak Italian. 

You can do all those things in your lifetime — but you can’t do them all at once. And, more importantly, you can’t excel in any of those fields, if you’re not willing to invest consistent hours into mastering them.

Too often though, this is the trap we fall into. We spread our energy too thin by going after too many things at the same time. As a result, we don’t end up achieving much.

Personally, I’ve fallen victim to this kind of thinking a few times. I wanted to travel the world and launch a project from scratch. I wanted to write a book and build a company. I tried to do them at the same time, but of course, that wasn’t possible.

But all that changed when I came across this Russian proverb that transformed my understanding of what it takes to succeed:

“If you chase two rabbits, you will not catch either one.”

If you want to create sustainable change in your life, you must choose “one thing” and you must go deep in that thing. You must choose—and chase—one rabbit .

And that’s the secret to mastery: You do one thing, you do it every day, and you did it for years.