Every truth goes through three stages: first, it is ridiculed; second, it is violently opposed; third, it is accepted as self-evident.
Creativity requires the courage to let go of certainties.
科学家研究自然并非因为它有用;他研究它是因为他从中获得乐趣,而他从中获得乐趣是因为它是美丽的。
永远不要停止学习,世界总是在变化。
Spiritual science does not want to overthrow the results of natural science, but to complete them.