What is the root cause of pain?

When a Cigarette falls in love with a match, it is destined to be hurt,
So do not say love easily. A promise is a debt owed.
The mouse said to the cat that I love you, The Cat said you go away, the mouse went away with tears, and no one saw the mouse.
A kite will only take an adventure for a lifetime.
A woman is a face, and a man is a heart.
In the world of love, no one is sorry, but only one does not know who to cherish.
If you can't keep my heart, don't say that you're spending your time,
The reason for the leaves is the pursuit of the wind or the failure to retain the tree ..
If you are my tears, then I will never cry.
Because I am afraid, I am afraid to lose your beloved ......
No one in the world is crying for you. The only one who is crying for you won't make you cry.
When it comes to the world, you can say that a person is not alone, and you want to be alone .....