"Silence is not always a sign of wisdom, but babbling is always a sign of folly."

古代的学者，为自己才学不高而担忧，就发奋学习，迎头赶上；现在的文士，为自己才学不高而羞愧，就隐满短处，避忌批评。

Mathematical intuition is like a muscle - it grows stronger with exercise.

也许世界上也有五千朵和你一模一样的花，但只有你是我独一无二的玫瑰。