If I don't know what is Happy, what is Glad, what is Serious....
What my wonderful world it will be....
But.....
I do, I do know what they are and how to express
So that why I know what is Angry, what is Sad, what is Depressed....
Also know what is CRY and know how to CRY.

Though CRY is a kind of way to show someone weak, there's still have an advantage.

After crying, I will get tired and go to sleep.
After sleeping, i might forget or get over Everything, at least Something.....

P.S. IF YOU DO NOT WANT TO HURT ME SO BAD, DO NOT MAKE ME SO GLAD.