Wisdom.

Wisdom. The power of the Goddess Nayru and a piece of the legendary relic, The Triforce. When the Triforce split into three fragments the Triforce of Wisdom went to Zelda. But what exactly is "wisdom" and how does it fit with Zelda? For the longest time I had been trying to figure this out, but after a conversation between the Jade Serpent and the Black Prince in World of Warcraft: Mists of Pandaria I think I finally have my answer. For your convenience I have included the conversation below:

Yu'lon: Tell me, dragon child: What is the nature of wisdom?
Wrathion: To do what is right, no matter the cost. That is wisdom.
Yu'lon: Spoken like a true child of the Aspects. Always seeking to change the world. But true wisdom comes from KNOWING what is right. And sometimes, DOING nothing at all.
Wrathion: When is it ever wise not to act for the greater good?
Yu'lon: To learn THAT is to learn true wisdom.
–– [Quest] Celestial Blessings

A lot of text, I know, but I feel the whole conversation to be important as it gives us a clear idea as to what wisdom is. I had always thought wisdom had something to do with being smart, which in a way it does, but it's a lot more complex than that. In the conversation Yu'lon describes wisdom as "knowing what is right and sometimes doing nothing at all". That is a lot to wrap one's head around, but in a way it makes sense, too. Sure you can fight, and probably win, but what good would it do in the long run? Standing up for what you believe in can require no action at all. Sometimes taking no action can be the best course of action.

This makes me think a lot about Zelda. She is often perceived as being weak because she gets captured a lot, but I think this is where wisdom comes into play. Zelda could very well fight back if she wanted to––she is the princess of Hryule and has magical powers after all––but she doesn't. She is worried about the risks involved when it comes to fighting, and therefore thinks surrendering herself or getting captured is the best course of action. While it may not always seem like the "best" option from our point of view I think there is a reason behind everything she does. As to what that is exactly I'm not sure, but I like to think good things.