History is, above all else, the creation and recording of that heritage; progress is its increasing abundance, preservation, transmission, and use.
Quality starts in the soil; if you take care of the land, the land will take care of you.
利用不同的感官刺激,有条不紊地将注意力引导到儿童的活动甽,即便是嗅觉也可以用理解的方式来训练,从而成为他们探索环境的器官。