"Books are the quietest and most constant of friends."
凡是教师缺乏爱的地方,无论品格还是智慧都不能充分地或自由地发展。
The number one benefit of information technology is that it empowers people to do what they want to do. It lets people be creative. It lets people be productive. It lets people learn things they didn't think they could learn before, and so in a sense it is all about potential.
Gravitational waves are a new way of observing the universe, allowing us to hear the cosmos.