The more we learn about black holes, the more we realize how much we still don’t know.
PAC学习框架提供了一种形式化的方法来量化概念类的可学习性。
Singing is not just about hitting the right notes; it's about conveying emotions and telling a story.
——2013年4月19日,昂山素季会见奥巴马时说。
政策辩论应以严格的实证分析为基础。
"真相是一面镜子,而镜子是破碎的。"
Experience is simply the name we give our mistakes.