The rise of China and the resurgence of Russia have challenged the idea that liberal democracy is the only viable form of government.
中国的崛起和俄罗斯的复兴挑战了自由民主是唯一可行的政府形式的观念。
Quality is not an act, it's a habit.
在每个故事中，都有一个等待被发现的隐藏真相。
The true poet is one who can capture the essence of a moment in a single word, and who can express the inexpressible in a single line.
言语越少，祈祷越好。
"In observational studies, we often have to rely on assumptions that are not directly testable."
"A child who reads will always have a friend."
Mathematics is the language in which the universe writes its deepest secrets.