请用英语说明为什么love是世界上最重要的?（200～300词请在06.11.5之前完成,

Love changes everything
Love, love changes everything: hands and faces, earth and sky.
Love, love changes everything: how you live and how you die.
Love can make the summer fly, or a night seem like a lifetime.
Yes, love, love changes everything, now I tremble at your name.
Nothing in the world will ever be the same.
Love, love changes everything: days are longer, words mean more.
Love, love changes everything: pain is deeper than before.
Love will turn your world around, and that world will last forever.
Yes, love, love changes everything, brings you glory, brings you shame.
Nothing in the world will ever be the same.
Off into the world we go, planning futures, shaping years.
Love bursts in and suddenly all our wisdom disappears.
Love makes fools of everyone: all the rules we make are broken.
Yes, love, love changes everything: live or perish, in its flame.
Love will never ever let you be the same.
Love will never ever let you be the same.
Ture Love
Let me not to the marriage of true minds
Admit impediments. Love is not love
Which alters when it alteration finds,
Or bends with the remover to remove:
O no! it is an ever-fixed mark
That looks on tempests and is never shaken;
It is the star to every wandering bark,
Whose worth's unknown, although his height be taken.
Love's not Time's fool, though rosy lips and cheeks
Within his bending sickle's compass come:
Love alters not with his brief hours and weeks,
But bears it out even to the edge of doom.
If this be error and upon me proved,
I never writ, nor no man ever loved.

每个人对于爱的理解都是不同的,比如有人会追求erotic affairs, 也又有执着于true love。
估计是你的作业，给你下面两首我所较为喜欢的小诗，希望对你有所帮助。
Love changes everything
Love, love changes everything: hands and faces, earth and sky.
Love, love changes everything: how you live and how you die.
Love can make the summer fly, or a night seem like a lifetime.
Yes, love, love changes everything, now I tremble at your name.
Nothing in the world will ever be the same.
Love, love changes everything: days are longer, words mean more.
Love, love changes everything: pain is deeper than before.
Love will turn your world around, and that world will last forever.
Yes, love, love changes everything, brings you glory, brings you shame.
Nothing in the world will ever be the same.
Off into the world we go, planning futures, shaping years.
Love bursts in and suddenly all our wisdom disappears.
Love makes fools of everyone: all the rules we make are broken.
Yes, love, love changes everything: live or perish, in its flame.
Love will never ever let you be the same.
Love will never ever let you be the same.
Ture Love
Let me not to the marriage of true minds
Admit impediments. Love is not love
Which alters when it alteration finds,
Or bends with the remover to remove:
O no! it is an ever-fixed mark
That looks on tempests and is never shaken;
It is the star to every wandering bark,
Whose worth's unknown, although his height be taken.
Love's not Time's fool, though rosy lips and cheeks
Within his bending sickle's compass come:
Love alters not with his brief hours and weeks,
But bears it out even to the edge of doom.
If this be error and upon me proved,
I never writ, nor no man ever loved.

Love is important
LOVE isn’t just anything.It’s not a toy that you can just play with and throw away into the garbage bin after.It’s a part of life.Without it,we feel emptiness in our souls.I know because I am in that situation now – having no one to love and to be loved by is the worst of all.
It’s important to love.It’s like oxygen to our soul.Without it,we just die.
Why must we love someone?I thought about this for quite a very long time and finally got the answer.We must love because we start to love from the time we are born.And then,in the later years,when we have girlfriends and boyfriends,we have to love them with a sincere heart.After university,we get married and then start a family.Love must be taught to the whole family to have a prosperous and peaceful family.This is also known as “The Circle of Love” created by God.
If there’s no love,evil is born.From evil,war and mass destruction will take place in the world.And then,it would be the end of the world.
So,you people out there who have someone to love and are loved by,you should be grateful.Treat them nicely.