(Images via Vogue, TechCrunch, Huffington Post, DesignnTrend)

Career advice can be invaluable, whether it be from a mentor, a boss, or even a friend. We’ve put together 4 awesome pieces of advice from top female entrepreneurs who have made a killing from the Internet. Check them out!

“Careers are a jungle gym, not a ladder.”

– Sheryl Sandberg, COO, Facebook

Career paths are evolving as startups change the working world. More people who have well established careers in a corporate environment are changing paths to learn something new or are even quitting corporate completely in order to start from scratch in a different industry. Sheryl Sandberg, who calls Silicon Valley home identified this trend a long time ago, and while “Lean In” encourages women to reach the boardroom, Sandberg says moving across, not up is also good for your career.

“Money looks better in the bank than on your feet.”

– Sophia Amoroso, Founder & Owner, Nasty Gal

Amoroso’s career path wasn’t exactly a conventional one, but turning Nasty Gal from an ebay store into an e-commerce giant taught her a lot of lessons along the way. Learning how to manage her money was initially a big test for her, which she reveals in her book, #GIRLBOSS. She explains that being in a good financial position can open up many doors, so start saving for a rainy day as money spells freedom!

“My mother was a continual source of wisdom and great advice…she taught me that there is always a way around a problem-you’ve just got to find it. Keep trying doors; one will eventually open. She also taught me to accept failure as part and parcel of life. It’s not the opposite of success; it’s an integral part of success.”

– Arianna Huffington, Editor in Chief, Huffington Post

Learning to accept failure is a piece of advice that is echoed throughout many different working environments nowadays. We once lived in a world where failure was something to fear but many entrepreneurs, including Arianna Huffington, are now revealing that embracing failure is what teaches you the most valuable lessons. Learning to accept failure is an integral part of personal growth.

“I always did something I was a little not ready to do. I think that’s how you grow. When there’s that moment of ‘Wow, I’m not really sure I can do this,’ and you push through those moments, that’s when you have a breakthrough.”

– Marissa Mayer, President & CEO, Yahoo!

Speaking of personal growth, Marissa Mayer offers what we think is the best piece of advice that anyone can apply to their career. Pushing yourself out of your comfort zone really is when you have breakthrough moments, especially for women who often have doubts. Push through the doubt and you’ll be surprised at the outcome.