互联网是教育的强大工具，但它不能替代教师。
The Internet is a powerful tool for education, but it is not a substitute for the teacher.
The value of literature lies in its ability to let us experience others' lives and thus better understand ourselves.
可持续性不是一种选择；而是我们对地球和未来奶农的义务。
To live is to be open to the unexpected.
The key to successful market design is anticipating how participants will behave under different rules.