What's the best skill to have as an aspiring business owner?

For me, it's rather a mindset: constant improvement. If I don't improve today, I know I will be behind competition tomorrow.

And one of the best ways to keep growing is to share experiences with others, who certainly have different insights, different skills, and different qualities that you can learn, develop, and leverage.

What do you think is the most essential quality business owners, entrepreneurs, and more generally digital nomads need to develop?