人类不仅是一种地质因素，而且可能是所有地质力量中最强大和最普遍的。
"I believe children's books should be beautiful objects, treasured and revisited."
The only thing worse than being talked about is not being talked about.
The function of mental processes is to mediate between the needs of the organism and the demands of the environment.
The heart of the Waldorf method is that education is an art—it must speak to the child's experience. To educate the whole child, his heart and his will must be reached, as well as the mind.
Never stop learning, because the world never stops changing.