Huxley Dunsany posted a set of 11 “rules for success” that were attached to the back of his employee badge when he started at Apple in 2004.

Check them out:

The “JB” referred to on the card is John Brandon, who was a vice president of sales in the US and Pacific for Apple.

“He was a great guy in my interactions with him, despite his lofty position relative to my total-noob status back then. He really seemed to live by these rules and made the whole organization feel like something really special, even when Apple was still climbing out of ‘beleaguered’ status,” Dunsany wrote.

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In 2004, Apple was not the giant it is today. It had just launched the first iPod Mini, Steve Jobs was still CEO, and the first projects that would become the iPhone were just getting started in Cupertino, California.

One of Dunsany’s favorite rules is No. 5, “Everyone sweeps the floor.”

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“It means that no job is too ‘low level’ or unimportant for anyone to help with. In other words, don’t get a big head just because you work for Apple or you got a promotion or you’re making $X per year — the basics still matter, and you’ll always be expected to help regardless of how high up you rise or how fancy you think you are,” he wrote.

Dunsany worked in a sales position in retail called Apple Solutions Consultant, but the lessons are broadly applicable to a variety of jobs and careers.

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Here’s the full list:

1. Let go of the old, make the most of the future.
2. Always tell the truth, we want to hear the bad news sooner than later
3. The highest level of integrity is expected, when in doubt, ask
4. Learn to be a good businessperson, not just a good salesperson
5. Everyone sweeps the floor
6. Be professional in your style, speech and follow-up
7. Listen to the customer, they almost always get it
8. Create win/win relationships with our partners
9. Look out for each other, sharing information is a good thing
10. Don’t take yourself too seriously
11. Have fun, otherwise it’s not worth it

This article originally appeared on BusinessInsider.com