The transition to cleaner energy must be practical, affordable, and reliable.
你越是赞美和庆祝你的生活,生活中就越有值得庆祝的事情。
材料是有记忆的,它们承载着时间和故事。
The real competition is not between products, but between business models.
The arithmetic of modular forms is a reflection of the deeper symmetries of number theory.