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If you don't go through the tough times, you don't get to the good times.

I declare after all there is no enjoyment like reading! How much sooner one tires of anything than of a book!

The past, like the future, is indefinite and exists only as a spectrum of possibilities.

The pursuit of knowledge is more valuable than the knowledge itself.

譯文：每天做的事，都要問心無愧才行，光陰容易逝去，希望能把這個信念堅持到老年。賞析：我們一生做事都要善于反省，做到防患于未然，避免發生更嚴重的錯誤。凡事粗心大意，魯莽草率，必將帶來禍害。