世界因你的艺术而更美好。
I declare after all there is no enjoyment like reading! How much sooner one tires of anything than of a book!
The deepest problems in mathematics often arise from the simplest questions.
生活的艺术在于懂得何时坚持，何时放手。
The quality of a country's institutions is the single most important determinant of its long-term economic performance.