Don't push me cause I'm close to the edge, I'm trying not to lose my head.
Fortune favors the prepared mind.
复杂的问题往往有简单的答案。
Small improvements, consistently applied, lead to massive change over time.
数学是一门活生生的学科，不断演变和发展。
世间没有什么能抵消春天的忧愁，不如对着苍天痛哭一场作罢。