Persistence is very important. You should not give up unless you are forced to give up.
弦理论提供了一个框架,使得量子力学和广义相对论能够和谐共存。
舞蹈、鼓掌、兴奋、欢叫、跳跃、飘飘荡荡、滚滚向前。
The universe will change if you bring up your children, in behavioristic fashion, to be unafraid.