[简答题]成功的首要条件和最大秘诀就是：把你的精力、思想和资本全部集中在你正从事的事业上。一开始从事某种职业，就要下定决心在那一领域闯出一片天地来；做这一行的领导人物，采纳每一点改进之心，采用最优良的设备，对专业知识熟捻于心。

参考答案: Here is the prime condition of success, the great secret: concentrate your energy, thought, and capital exclusively upon the business in which you are engaged. Having begun in one line, resolve to fight it out on that line, to lead in it, adopt every improvement, have the best machinery, and know the most about it.