历史学是一门智慧之学、启迪之学，我们衷心地希望本书能给广大读者朋友们带来灵感，启迪广大读者朋友们的智慧，缓解广大读者朋友们心中积蓄的压力；也希望读者朋友们能通过学习历史而不断完善自我、发展自我，铸就非凡的人生。History is a science of wisdom and enlightenment and we hope truly that this book will bring inspirations to readers so that their wisdoms are enlightened to relieve pressure on the mind accumulated. Meanwhile we hope that readers through learning history can improve and develop themselves so that they can make remarkable achievement in life.