The Student Oath is recited at the end of every class. In reciting the Student Oath one develops a sense of responsibility and self-discipline. It is a reminder of one of the reasons you practice Tae Kwon Do.

I shall observe the tenets of Tae Kwon Do.
You should follow the tenets both inside and outside of the dojang. The tenets and their meanings are:

I. Courtesy
Be considerate of others.
II. Integrity
To be of moral principle.
III. Perseverance
To never give up.
IV. Self-control
To have control over your thoughts and actions.
V. Indomitable Spirit
The willingness and attitude to constantly push yourself.

I shall respect my instructors and seniors.
You need to have respect for your instructors and seniors to help create a good atmosphere for training. It also means that one should respect the time, effort and knowledge that the instructors and seniors are giving to the class.

I shall never misuse Tae Kwon Do.
Tae Kwon Do skills should never be used in an unprovoked manner. I know that with the skills that I am developing I could seriously hurt someone. These skills should only be used to defend yourself after other less violent methods have failed.

I will be a champion of freedom and justice.
As I progress in Tae Kwon Do, I am developing both physically and mentally into a stronger person. This allows me to protect others who cannot protect themselves and be better at seeking out justice. I need to listen to all the facts on an issue and then make a decision, not just jump to a conclusion. I must be willing to stand up for what is right.

I will build a more peaceful world.
One might take this to mean that you should back down from aggression, but everyone has a right to defend himself or herself. I believe that this means that I should go about my life in a manner that promotes peace and harmony. This means more than just not succumbing to anger and violence, it also means that I need to encourage others to do the same.