教育学中的实验方法不仅是研究的工具，更是所有教育实践的基本原则。
元素周期表没有改变，但我们使用其元素的方式必须改变。
世界杀害最善良的人，最温和的人，最勇敢的人，不偏不倚，一律看待。
不要让过去决定你是谁，而是让它成为你成为谁的一部分。
A story is not like a road to follow...it's more like a house. You go inside and stay there for a while, wandering back and forth and settling where you like and discovering how the room and corridors relate to each other, how the world outside is altered by being viewed from these windows.
Thought is the servant of action, and action is the servant of survival.
It is by no means an irrational fancy that, in a future existence, we shall look upon what we think our present existence, as a dream.