There is an old English adage that people who have no work or are idle get into trouble. Work has many benefits for man which one of them is financial profits, although it is often the first reason for the majority of people to work. I personally think many people work to enjoy, to gain a social prestige, and to learn some skills.
First, work can be joyful for those who work in their favorite fields. To follow their interests and their heart is the first priority for them rather than earning money. For example, many musicians are so drawn to their notes, instruments, and performances that many hours of working pass like a minute for them because they really enjoy their work. They perform their task sincerely and readily.
Second, social prestige is so significant for some people. One of the first questions that people ask each other when they meet for the first time is “what is your job? ”, and they somehow judge each other by the answer to this question. For instance, the treatment given to a manger of a well-known corporation considerably differs from the one given to a blue-collar worker. This is why some persons tend to brag about their jobs and positions so that they can improve their social respect and also self-respect. In addition, mankind needs to feel that he is important, his existence is necessary in some places, and he can successfully fulfill a task as well.
Third, gaining experience and acquiring new skills might be logical reasons for working. At the work place, communicating with different colleagues, gaining further up-to-date information, and implementing our knowledge can be rewarding, and also crucial for some individuals. These experiences can be the main source of wisdom for us to climb up the ladder.
To sum it up, I think apart from having an income, following personal interests, gaining better social position in the community, and practical knowledge motivate people to work harder and get ahead in their life. 
There is an  
old
 English adage that  
people
 who have no  
work
 or are idle  
get
 into trouble.  
Work
 has  
many
 benefits for  
man
 which one of them is financial profits, although it is  
often
 the  
first
 reason for the majority of  
people
 to  
work
. I  
personally
  think
  many
  people
  work
 to enjoy, to gain a  
social
 prestige, and to learn  
some
  skills
. 
First
,  
work
 can be joyful for those who  
work
 in their favorite fields. To follow their interests and their heart is the  
first
 priority for them  
rather
 than earning money.  
For example
,  
many
 musicians are  
so
 drawn to their notes, instruments, and performances that  
many
 hours of working pass like a minute for them  
because
 they  
really
 enjoy their  
work
. They perform their task  
sincerely
 and  
readily
.
Second,  
social
 prestige is  
so
 significant for  
some
  people
. One of the  
first
 questions that  
people
 ask each other when they  
meet
 for the  
first
 time is “what is your job? ”, and they somehow judge each other by the answer to this question.  
For instance
, the treatment  
given
 to a manger of a well-known corporation  
considerably
 differs from the one  
given
 to a blue-collar worker. This is why  
some
 persons tend to brag about their jobs and positions  
so
 that they can  
improve
 their  
social
 respect and  
also
 self-respect.  
In addition
, mankind needs to feel that he is  
important
, his existence is necessary in  
some
 places, and he can  
successfully
 fulfill a task  
as well
.
Third, gaining experience and acquiring new  
skills
 might be logical reasons for working. At the  
work
 place, communicating with  
different
 colleagues, gaining  
further
 up-to-date information, and implementing our knowledge can be rewarding, and  
also
 crucial for  
some
 individuals. These experiences can be the main source of wisdom for us to climb up the ladder.
To sum it up, I  
think
 apart from having an income, following personal interests, gaining better  
social
 position in the community, and practical knowledge motivate  
people
 to  
work
 harder and  
get
 ahead in their life.