Many of the principles learned in martial arts are effective in other facets of life, too.
You're taught to channel the energy and momentum of an opponent against him. If someone comes charging at you, either physically or verbally, you can step out of the way and let him run into a wall, or block at the right spot and let his own energy flip him upside down.
I discovered that breaking a board, bricks, or concrete blocks is not about physical strength but about using correct techniques and understanding the materials you're working with. I'm just over 5 feet tall, and I felt tremendously empowered when I broke my first board with an elbow swipe.
Learning concentration and meditation is enormously valuable, too. I also like aikido and tai chi.
Teacher: Approach, students. Close the circle at the feet of the master.You have come to me asking that I be your guide along the path of Ti Kwan Leep. But, be warned: To learn its ways, you must learn the ways of your own soul. Let us meditate upon this wisdom now. So: Aaaaaaooooommm......
Student1 (Ed Gruberman): Uh, sir! Sir! (oo! oo!) Sir!
Teacher: Who disturbs our meditation, as a pebble disturbs the stillness of the pond?
EG: Me! Ed Gruberman?
Teacher: E-Ed Gruberman?
EG: Yeah, uh, no disrespect or nothin', but, like, uh, how long is this gonna take?
Teacher: Ti Kwan Leep is not a path to a door, but a road leading forever towards the horizon.
EG: So like, what, an hour or so?
Teacher: No, no, we have not even begun upon the path. Ed Gruberman, you must learn patience.
EG: Yeah yeah yeah, patience. How long will that take?
Teacher: Time has no meaning. To a true student, a year is as a day.
EG: A YEAR??? I wanna beat people up right now! I got the pajamas! Hah woo yah ooomm!
Teacher: "Beat people up"...?
EG: Yeah! Just show me all those nifty moves so I can start trashing bozos! That's all I came here for! YO ASTA STA STA!!! Pretty good, ey?
Teacher: The only use of Ti Kwan Leep is self-defense. Do you know who said that? Ki Lo Ni, the great teacher.
EG: Yeah? Well the best defense is a good offense, you know who said that? Mel, the cook on "Alice".
Teacher: No, um...Ti Kwan Leep is the wine of purity, not the vinegar of hostility. Meditate upon this truth with us. Aaaaoooommm...
EG: Listen, shrimp! All this fag talk is really starting to piss me off. Now, are you gonna show me some fancy moves, or am I gonna start wipin' the walls with you?
Teacher: Ed Gruberman, you fail to grasp Ti Kwan Leep. Approach me that you might see.
EG: All right! Finally some action!
Teacher: Observe closely, class. Boot to the Head! (SH-ZOOMP!)
EG (drunkenly): Owww! You booted me in the head!
Teacher: You are lucky, Ed Gruberman. Few novices experience so much of Ti Kwan Leep so soon.
EG (quietly, to himself): Ow, oh, my head!
from http://www.bxscience.edu/~grollman/funny/boot