统一自然界所有力的挑战是一个多世纪以来推动理论物理学发展的动力。
The biggest challenge in our industry is not technical—it's changing mindsets.
I don't think you should ever have to apologize for your excitement.
The worst of having a romance of any kind is that it leaves one so unromantic.
没有你爱的人分享,成功毫无意义。