对民主的最大威胁不是来自外部敌人，而是来自内部腐败和公民美德的丧失。
Literature is an expression, an exploration of the inner self.
The poet’s task is to make the invisible visible.
Your most unhappy customers are your greatest source of learning.
λ演算不仅仅是一种形式主义，而是一种可以表达计算的语言。
"To read is to travel without moving, to explore without leaving home."