"Writing is a way of talking without being interrupted."
"Los Angeles is the city of the future—always."
农业中最大的风险是世界在变化,而我们却停滞不前。
Mathematics is a living subject, constantly evolving and growing.
经验丰富的人读书用两只眼睛,一只眼睛看到纸面上的话,另一只眼睛看到纸的背面。