The use of a program to prove the 4-color theorem will not change mathematics - it merely demonstrates that the theorem, a challenge for a century, is a finite problem.
外交需要从战略和长远的角度思考，以实现国家的长期利益和安全。
The market is always looking for the next big move.
Education is the foundation upon which sustainable forestry is built.
安全不是功能，而是基础。
Life is a tragedy for those who feel, and a comedy for those who think.