在探索宇宙的过程中，我们必须拥抱未知和不可知的事物。
In the quest for understanding the cosmos, we must embrace the unknown and the unknowable.
变化是所有存在的基本过程。
"Science is not just a collection of facts; it's a way of thinking, a way of skeptically interrogating the universe with a fine understanding of human fallibility."
历史的终结将是一个非常悲伤的时刻。为了纯粹抽象的目标而愿意冒生命危险的斗争，全球意识形态斗争所唤起的勇敢、勇气、想象力和理想主义，将被经济计算、无休止的技术问题解决、环境关注和复杂消费者需求的满足所取代。
The future is not a result of choices among alternative paths offered by the present, but a place that is created—created first in the mind and will, created next in activity.