设计中最难的部分是保持功能的简洁。
The hardest part of design is keeping features out.
"In computational learning theory, the challenge is not just to learn, but to understand how learning is possible."
The only way to do great work is to love what you do.
【译文】一年的计划应在春天里做好，一天的计划应在黎明时分做好，一个家庭最宝贵的是和睦，一个人一生要有所成就必须勤劳。
The heart of the educator must be a living flame, a fire that can ignite the souls of the young.