笑和哭都是对挫折和疲惫的反应。我自己更喜欢笑，因为之后需要清理的少。
Laughter and tears are both responses to frustration and exhaustion. I myself prefer to laugh, since there is less cleaning up to do afterward.
过去总是存在，只是有时比其他时候更明显。
一个组织的系统质量决定了其流程质量。