Being able to gain knowledge is important in today's era, as it is the element key to success. Some countries promote wide coverage of education policy in order to offer students able to learn more subjects during their secondary school, while others emphasise limited subjects which only related to certain professions. In my opinion, nowadays, individuals are required to bear additional skills in their field as it may be helpful. Hence, it is essential to expand our knowledge as possible. In the following paragraph, I will provide some evidence and examples to support my view.