Do you have a tough and persistent heart?
'Nothing is difficult in the world, as long as you are willing to climb.' To achieve success in any work, you need to work tirelessly, try it out easily, give up halfway, and you will achieve nothing in the end. A spirit of perseverance is the basis for success. Carnegie once said: 'Many young people's failures can be attributed to the lack of perseverance.' Indeed, many young people are quite tal...