Most of us work hard – and hard work has nothing to do with gender.

But as more and more women have entered the workforce and fields dominated by men over the last, well, 100 years now(!), they haven’t always been welcomed with equal treatment. And in nearly every field, they aren’t paid the same as men – even when they have the same job, experience, responsibilities, and education.

That’s not a political statement – that’s just a fact (even though it’s been illegal in the U.S. since the passage of the Equal Pay Act in 1963). In fact, it’s true all over the world (though some are happy to try to discredit it to keep women “in their place”). Of course, it’s not the same for every woman, and there are certainly men who have experienced similar mistreatment – but women face it systematically.

It’s enough to make anyone really discouraged.

But instead of wallowing in the unfairness of it all, women have banded together to help each other navigate the workplace.

This advice isn’t “women’s only” – it’s not a secret clubhouse, but what follows are some very insightful Tweets that were posted in response to a question asked by Amy Nelson, founder of The Riveter.

She asked simply: “To my working women friends: If you could give your younger working self any advice, what would you say?”

What followed was some wonderful encouragement – most of it applicable to any gender.