The most important skills I can think of:
Curiosity - Never be afraid to learn how something works, whether it's some new programming language or a specific law or why Pop-Rocks fizz - be curious as it will make learning new things a lot more entertaining.
Speak Up - Learn how to speak up when necessary, whether it requires being assertive to put people in to place, or showing someone what you are capable of and something you have knowledge in - don't be afraid to speak your mind.
Patience - this is a very important trait - you will need it when trying to learn something new, or if you are in a position of mentoring someone. You need to understand it takes time to get things right.
Greed - yep, I'll say it - you need a certain level greed (not just with money but also in accomplishments) - not because it's a good thing in the grand scheme of things, but it can also act as a motivator to your success in life; at the same time don't let greed get the best of you and be humble about everything - even if it's a facade at times.