The universe is full of surprises, and we are just beginning to scratch the surface of understanding it.
The metropolis exacts from man as a discriminating creature a different amount of consciousness than does rural life.
革命是无情的,不仅对那些落后的人,而且对那些跑在前面的人。
我们必须愿意失败,愿意犯错,愿意带着学到的教训重新开始。