There are lots of examples about a person's Perseverance bringing about changes in history. Or new discoveries in cures for some human Diseases The well-known history of the Revolution in 1911 is a good example through a hard struggle with many failures for almost three decades, Dr. Sun Yat-sen with his people free themselves from a corruptive government of the last dynasty likewise if one wants to succeed in pursuing his serious goal in his life, perseverance is always the necessary cha...