没有可持续性的效率只是短期的胜利；真正的进步是以长期影响来衡量的。

死者是看不见的，但他们并不缺席。

文化生态学通过关注人类与其环境之间的互动，弥合了自然科学与社会科学之间的鸿沟。

Children have real understanding only of that which they invent themselves, and each time that we try to teach them something too quickly, we keep them from reinventing it themselves.