精神科学不想推翻自然科学的结果，而是要完善它们。

生活是一段旅程，如果你爱上了这段旅程，你将永远爱下去。

世界就是一本书，不旅行的人只读了其中一页。

知识可以分享，智慧无法分享，它可以被发现，被体验。

The end of history will be a very sad time. The struggle for recognition, the willingness to risk one's life for a purely abstract goal, the worldwide ideological struggle that called forth daring, courage, imagination, and idealism, will be replaced by economic calculation, the endless solving of technical problems, environmental concerns, and the satisfaction of sophisticated consumer demands.