I don't let the world change my smile.
I declare after all there is no enjoyment like reading! How much sooner one tires of any thing than of a book!
创新不仅仅是创造新事物;而是让现有的变得更好。
In science, the most exciting phrase is not 'Eureka!' but 'That's funny...'
The more we learn about black holes, the more we realize how much we still don’t know.