A film should challenge the viewer, not just entertain.
增加你积极性的最佳方法是在你当前的环境中寻找积极的意义。
The intersection of cryptography and complexity theory is where some of the most fascinating problems in computer science reside.
朗兰兹纲领是对我们理解数学基本本质的挑战。
"In times of change, the ability to pivot quickly is crucial."