这是圣王的法则,治理天下的正道,不可不努力去做!
The history of mathematics is a history of human thought and progress.
I always try to be positive, even in tough moments.
"Always be prepared for the unexpected."
我们开发的每个化学工艺都必须通过三个测试:它安全吗?它可持续吗?它具有可扩展性吗?