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The essence of liberty is the ability to pursue one’s own goals without arbitrary interference from others.

The secret of change is to focus all of your energy not on fighting the old, but on building the new.

啟蒙的概念與解放的概念緊密相連。

Live as though you intend to live forever，and work as though your strength were limitless.

讓我們?nèi)?chuàng)造明天，而不是為昨天擔(dān)憂。