The key to success is persistence and continuous improvement.

外交是一门艺术，要耐心、智慧和灵活性。

Short videos are a product of the times, they lower the threshold for expression.

解释：不在农忙时役使百姓而耽误农时，那么可以保证百姓富裕。

"Prime numbers are what is left when you have taken all the patterns away. I think prime numbers are like life. They are very logical but you could never work out the rules, even if you spent all your time thinking about them."