Avatar: The Last Airbender, Season 2

Iroh:
[drawing the Fire Nation symbol in the sand before Zuko] Fire is the element of power. The people of the Fire Nation have desire and will, and the energy and drive to achieve what they want. [draws the Earth Kingdom symbol] Earth is the element of substance. The people of the Earth Kingdom are diverse and strong. They are persistent and enduring. [draws the Air Nomads symbol] Air is the element of freedom. The Air Nomads detached themselves from worldly concerns and found peace and freedom. Also, they apparently had pretty good senses of humor! [grins]

[Zuko stares blankly at Iroh]

Iroh:
[continuing, drawing the Water Tribe symbol] Water is the element of change. The people of the Water Tribe are capable of adapting to many things. They have a deep sense of community and love that holds them together though anything.

Zuko:
Why are you telling me these things?

Iroh:
It is important to draw wisdom from many different places. If we take it from only one place, it becomes rigid and stale. Understanding others, the other elements, and the other nations, will help you become whole.

Zuko:
All this "Four Elements" talk is sounding like Avatar stuff.

Iroh:
It is the combination of the four elements within one person that makes the Avatar so powerful. But, it can make you more powerful, too. [prods him in the chest with his staff] You see, the technique I am about to teach you is one I learned by studying the Waterbenders.