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The advancement of mathematics is due to those who are driven not by the desire for application but by the joy of discovery.

釋義：人的一生在于勤奮，不努力探索，哪會有收獲??

故事的力量不在于其長度，而在于其深度和主題的普遍性。

最有力的藝術往往是最模糊的。

It is not unlikely, but that there may be yet invented several other helps for the eye, as much exceeding those already found, as those do the bare eye.