One Possible Version：

Recently we have had a discussion about what is happiness. Opinions are divided as follows.

40 percent of the students think that they are happy when they wear fashionable clothes or have high-tech products like a mobile phone and MP5, as they feel they are keeping up with fashion. When they are free to do what they would like to do, they will gain the sense of happiness.

Howerev, the others have different opinions. To them, happiness means achieving success in something, such as meeting a goal. They know that the secret to happiness is to have appreciation for the good things in life, and focus on goals. Faced with trouble, they just do as Sang Lan did. They like to be optimistic and always stay positive to life.

As far as I’m concerned, happiness will fill my heart when I can do something for others, such as donating something to those who are in trouble. Happiness isn’t about what happens to us; it’s about how we understand what happens to us. It’s not wishing for what we don’t have, but enjoying what we do possess.