A book is not just pages and ink; it is a living breath.
对认可的渴望,灵魂中的激情部分,是人性中最具政治危险性的部分。
解决全球饥饿的关键不仅是提高产量,还要改善营养质量。
我不是独奏,我是二重奏。
The most profound ideas in mathematics often come from asking the simplest questions.
Your most unhappy customers are your greatest source of learning.