夜晚是一首伟大的交响乐，但星星是它的音符。
Never stop learning, because the world never stops changing.
The dairy industry must balance tradition with innovation to meet modern demands.
当一扇门关闭时，你要知道，另一扇门正在打开。
战争不会消灭正直，它反而更需要正直——比和平时期更需要。
发现的喜悦是推动数学家前进的动力。
今天我们必须负责任地开采煤炭，这样我们的孩子才能继承能源安全和健康的环境。
The strength of a company lies in its people, not just its profits.
I'm mentioning all this -- I'm mentioning all this because I think this is not merely a personal problem; you may think I'm wrong in this, but I think we live in an age when our lives are regularly punctuated by career crises, by moments when what we thought we knew -- about our lives, about our careers -- comes into contact with a threatening sort of reality.