Every man is like the moon, with the dark side that never let anyone see.
每个人都像月亮,有着从来不让任何人看见的黑暗面。
释义:做事要有合理的理论依据,这样有利于成就大事。自古以来,征战与讨伐必须师出有名。
The essence of mathematics lies in its power to reveal patterns and symmetries.