People haven't always been there for me, but music always has.
The key to solving complex problems is often to find the right abstraction that simplifies the problem without losing its essential features.
没有经济复苏,就没有日本的繁荣。
随机评估可以帮助我们了解发展中哪些措施有效,哪些无效。
Quality is not a goal; it is a journey.