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Solving a problem simply means representing it so as to make the solution transparent.

The world is a book, and those who do not travel read only one page.

事實是，最多人的最大幸福是衡量對與錯的標準。

If you're not failing, you're not trying hard enough.

有時候你必須接受，有些人注定不會永遠留在你的生活中。