1. But my own worry today is less that of the overwhelming problem of elemental literacy than it is of the... [查看全文]
1. Thus many in the industrial lands have a sense that their world of plenty is somehow hollow—that, misled... [查看全文]
1. The notion that learning should have in it an element of inspired play would seem to the greater part o... [查看全文]
1. Connected to a wave-front sensor that tracks and measures the course of a laser beam into the eye and b... [查看全文]
1. At some point, while researchers work on figuring out where the truth lies, it just makes sense to say ... [查看全文]
1. An examination of the history of humanity suggested that man in our epoch is so different from man in p... [查看全文]
1. She recalls watching the ship, brightly lit, slipping into its dark grave - and into seeming nothingness,... [查看全文]
1. She recalls watching the ship, brightly lit, slipping into its dark grave - and into seeming nothingness,... [查看全文]
When we analyze the salt salinity(鹽濃度) of ocean waters, we find that it varies only slightly from place t... [查看全文]
At the close of each business day, most trained teachers, administrators, politicians, and statesmen make objec... [查看全文]