The biggest mistake you can make is believing you know everything. Stay humble and keep learning.
最大的错误就是以为自己无所不知。保持谦逊,不断学习。
数学是模式的科学,而自然利用了每一种可能的模式。
Liberty cannot be preserved without a general knowledge among the people.
The Soviet Union was a civilization of fear, where people lived in constant dread of the knock on the door at night.