Once, an old college group met after a long time. Each of them was earning well. They all met at their favorite professor's home. The professor started asking about their work. Talks slowly shifted to stressful and work loaded life.

Everyone was agreed at this point. Although they were earning well, but they were not enjoying their life as they did before.

The professor was listening to everyone attentively. Suddenly, he stood up and went to the kitchen. After a while, he returned from the kitchen and asked "Dear students! I have prepared hot coffee for you. Please help yourself and take your coffee from the kitchen."

The boys went to the kitchen. There were many kinds of coffee's cups in the kitchen . All of them started to pick the best cup. Someone picked a up a cup up which is was made of crystal, someone picked up the plastic cup up and someone's cup was made from glass.

Everyone got coffee. The professor said "If you have noticed, you choose the good looking and expensive cups. You have did not pay attention on to the normal cups at all. These cups are difficult to maintain. The expensive cups does not change the taste of coffee. Our lives is the same like as these cups. A good job brings money and position status. It changes the our way of living and to one that is hard to maintain and that's why we get stressed. So think about the taste of coffee not the cups.".

Please correct my English mistakes

Once, an old college group met after long time apart. Each of them was earning well. They all met at their favorite professor's home. The professor started asking about their work. Talks slowly shifted to the topic of stressful and work-loaded life.

Everyone was in agreement at this point. Although they were earning well, but  they were not enjoying their lives as they did before.

The professor was listening to everyone attentively. Suddenly, he stood up and went to kitchen. After a while, he returned from the kitchen and asked  said "Dear students! I have prepared hot coffee for you. Please help yourselves and take your coffee from kitchen."

The boys went to kitchen. There were many kind of coffee's cups in the kitchen . All of them started to pick the best cup. Someone picked a cup up which  that is  was made of crystal, someone picked the plastic cup up and someone's cup was made from glass.

Everyone got coffee. The professor said "If you have noticed, you chose the good-looking and expensive cups. You have not paid attention on to the normal cups at all. These cups are difficult to maintain. The expensive cups does not change the taste of coffee. Our lives is are the same like  as these cups. A good job brings money and position status. It changes the way of living and because this is hard to maintain, that's why we get stressed. So think about the taste of coffee, not cups.".