"The brain is like a muscle. When it is in use we feel very good. Understanding is joyous." - Carl Sagan"“大脑就像肌肉一样，当我们使用时会感到愉悦。理解是充满欢乐的。”
Astronomy is a humbling and character-building experience.There is perhaps no better demonstration of the folly of human conceits than this distant image of our tiny world...it underscores our responsibility to deal more kindly with one another, and to preserve and cherish the pale blue dot, the only home we've ever known.
历史给我们的一个令人难过的教训的就是：如果我们被欺骗的足够久的话，我们就越倾向与驳回那些关于我们被骗的证据，我们对于找出真相不再感兴趣，因为要承认它实在是太痛苦了，即使只是对自己承认。一旦你把力量交给骗子，就几乎不可能再收回它。