1.        One of the most important human emotions islove.

2.        However, there are many different kinds oflove.

3.        Romantic love is certainly one of the most interesting kinds of love.

4.        It can be beautiful, wonderful, and heartbreaking, sometimes all at the same time.

5.        Romantic love can make our lives full and meaningful, but it can also be an escape from loneliness and suffering.

6.        If romantic love has a purpose, neither psychology nor biology has discovered it.

7.        However, throughout history, philosopher shave offered opinions about it.

8.        The Greek philosopher, Plato, said love makesus complete.

9.        He relates a comic story in which humansoriginally had 4 arms, 4 legs and 2 faces.

10.     Then, when they angered the Gods, they were cut in half.

11.     Since then every person has been searching for their soulmate, the otherhalf of his or her self.

12.     Another philosopher believed that love is an illusion.

13.    In his view, people fall in love because they believe the other person canmake them happy.

14.     But in fact, this is just an illusion designed to make us have children.

15.     Once we have children, we are right back to where we were, still searchingfor happiness.

16.     For nature this is a success, because we have children to maintain ourspecies.

17.     But it leaves us still searching for something more.

18.     If something is an illusion，it isn't what it seems to be.（前文未出现生句）

19.     In Buddhism, romantic love is seen as an attempt to satisfy ourdesires.

20.     These desires are adefect, something we need to overcome.

21.     The way to free ourselves from suffering is to remove desires.

22.     Once free of desires we can reach a state of peace and wisdom.

23.     This state of being is called nirvana.

24.     Other kinds of love include the love between a parent and child.（前文未出现生句）

人性如泉，流在干净的地方带走不干净的东西，流在不干净的地方它自身污浊。