埃塞俄比亚人说他们的神是塌鼻子和黑色的，色雷斯人说他们的神有浅蓝色的眼睛和红色的头发。
The Ethiopians say that their gods are snub-nosed and black, the Thracians that theirs have light blue eyes and red hair.
The human mind is not just a passive recorder of reality but an active constructor of it.
The beauty of mathematics lies in its ability to describe the universe in the most elegant way possible.