客户满意度应该始终是每个决策的核心。
Customer satisfaction should always be at the heart of every decision.
To lose a language is to lose a way of seeing the world.
发现的喜悦是推动数学家前进的动力。
【译文】贪图小利，就会损害重大利益。
过去并未死去，它甚至还未过去。