A book is a dream that you hold in your hand.

桥梁不仅是一种结构，也是人类进步的象征。

Mathematics is the most beautiful and most powerful creation of the human spirit.

Watch your thoughts, for they become words. Watch your words, for they become actions. Watch your actions, for they become habits. Watch your habits, for they become your character. And watch your character, for it becomes your destiny. What we think, we become.

解析：这句话揭示了道的本质：道是可以阐述说明的，但并非寻常的道理；名是可以命名的，但并非通常的名称。

每一寸山河都像黄金般珍贵，国家分裂的痛苦谁能承受？杜鹃啼血表达对国家的忧虑，精卫填海象征永不放弃的爱国之心。