What advice would you give your former self? And what is the best advice you’ve ever been given?

We decided to compile some of the answers. It’s interesting to see what themes emerged, but also how unique each person’s “best advice” was. Read on for career and life advice gems from some of the most successful people around.

Brit Morin: Start something you’re genuinely passionate about.

I think the most important thing is to make sure the business you want to start is something you are personally passionate about, not just a big business idea. You have to fight and grind every single day, and you’ll be less likely to give up during the hard times if it’s something you deeply care about. I tell people all the time that if Brit + Co died tomorrow, I’d still be doing many of the same things. This is a business I can see myself running for the rest of my life. — Brit Morin, Founder & CEO of Brit + Co.

Jack Dorsey: Find good people to support you.

Reflect on what drives you and what you’re naturally passionate about. And find good people to support you. — Jack Dorsey, CEO of Twitter & Square.

Molly Graham: Listen to what your gut says. Trust it.

Wait for the moment when your gut or your heart makes itself VERY clear about hard decisions. The other thing…you should ALWAYS follow wonderful people that you want to learn from more than almost anything else in your career. I have been so lucky to get to learn from many, many amazing people. — Molly Graham, COO, Quip

Andrew Chen: Find your superpower

Learn to be T-shaped; be good at a bunch of stuff, but then have a clear superpower where you’re world class. To be world class at something, you’ll have to work on a single thing night and day for years. Spend time writing and reflecting—more than reading, and more than reading tweets. It’s good to blend your work and your hobbies; that says you enjoy your work enough to do it all the time. Don’t sell your time for a living. â€” Andrew Chen, Supply Growth, Uber

Ken Norton: Write your resume 10 years from now

Jonathan Rosenberg, former SVP of Product at Google, used to ask all the product managers on his team to write their resumes in 10 years. Where do you want to be? I was skeptical until I did it. I realized pretty quickly that my resume in 10 years didn’t say “CEO.” I didn’t want to be a CEO. But I hadn’t explicitly stated that, and in many ways the PM career path defaults to the CEO career path. Knowing I wanted something different helped me be more deliberate about my career decisions and communicating my goals to others. â€” Ken Norton, Partner, Google Ventures