Nothing takes place in the world whose meaning is not that of some maximum or minimum.
世界上发生的任何事情,其意义无非是某些极大或极小值。
Every failure in the lab is a step closer to success.
"The most profound discoveries often come from the simplest observations."
All our dreams can come true if we have the courage to pursue them.
To be or not to be,that's a question.