根据课文的内容在每个空白处填入一个恰当的词。 

This is true of the61of mankind.It is also true of mankind's spiritual resources. Most of these resources, both technical and spiritual, are62in books. When you have read a book, you have63to your human experience. Read Homer and your mind64a piece of Homer’s mind.Through books you can acquire at least fragments of the mind and experience of Virgil, Dante, Shakespeare—the list is endless. For a great book is necessarily a gift;it65you a life you have not time to live yourself,and it takes you into a world you have not the time to travel in literal time. A66mind is one that67many such lives and many such worlds. If you are too much in a68, or too proud of your own limitations, to accept as a gift to your humanity some69of the minds of Aristotle or Einstein,then you are neither a developed human nor a useful70of a civilization.