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知識只有在它有助于人類解放時才有價值。

一本好書是一個永遠不會讓你失望的朋友。

The more the division of labor and the application of machinery extend, the more does competition extend among the workers, the more do their wages shrink together.

Come,my friends,Tis not too late to seek a newer world,For my purpose holds to sail beyond the sunset，And though we are not now that strength which in old days moved earth and heaven,That which we are, we are;-- One equal temper of heroic hearts, Made weak by time and fate, but strong in will. To strive, to seek, to find, and not to yield。