Courtesy costs nothing. Lower the toilet seat after use. Let the people in the elevator exit before you enter. Return shopping carts to their designated areas. When you borrow something, return it better shape (filled up, cleaned) than when you got it.
空气中弥漫着一种悲伤,但这种悲伤让你感觉活着。
每当我们提出问题的解决方案时,我们都应该尽力推翻我们的解决方案,而不是捍卫它。
质量不是流行语;它是一种生活方式。
每个发现都会引发新的问题。