在每一本书中，都有作者灵魂的一部分。
"Memory is a strange thing. It doesn't work as I thought it did. We are so foolishly constructed that we go through life arm in arm with our earliest memories, thinking they are the most recent."
谁统治东欧，谁就掌控了心脏地带；谁统治心脏地带，谁就掌控了世界岛；谁统治世界岛，谁就掌控了世界。
人生短暂如白马过隙，若不及时享受生活，年老时只能空自悲伤。
Mathematics is the most beautiful and most powerful creation of the human spirit.