你必须相信你的长期计划，但你需要短期目标来激励和启发你。
You have to believe in the long term plan you have but you need the short term goals to motivate and inspire you.
教育的主要目标是培养能够创新的人，而不仅仅是重复前人所做的事情。
Concerning the gods, I cannot know either that they exist or that they do not exist, nor what form they might have, for there is much to prevent one's knowing: the obscurity of the subject and the shortness of man's life.