主题词：
逆境（adversity）
困难（difficulty）
危险（danger）
勇气（courage）
智慧（wisdom）…   

Besides, surveys conducted by some biographers have also demonstrated that almost all of the great men and celebrities have built their mansion of success on the bedrock of adversities. Take Georgia Washiton, one of the greatest founding fathers of the United States of America, as a case in point：to break away from the British Empire and became an independent country，he led the American War of Independence. However，problems and challenges such as inexperience of war, adverse weather condition, shortage of ammunition and smallbox arose. Confronted with such an adversity, he became more mature and composed, and then won the Revolutionary War finally through his courage and wisdom resulted from supassing adversity. 

而且，由一些传记作者展开的调查也已经发现，几乎所有的伟大的人物和名人都将自己成功的大厦建立在逆境的基石上。以美国最伟大的开国之父之一乔治亚.华盛顿为例，为了脱离英国的殖民统治，建立一个独立的国家，他领导了美国独立战争。但却遇到了诸如战争经验不足、气候条件恶劣、弹药不足及天花肆虐等各种问题和挑战。面对这样的逆境，华盛顿变得更加成熟镇定，并最终用自己战胜逆境的勇气和智慧，赢得了这场战争的最后胜利。