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Silence is the perfectest herald of joy.

Remember, hope is a good thing, maybe the best of things. And no good thing ever dies.

Writing is not about communicating, it's about thinking.

"The dead are more alive than we are, because they are complete."

Never stop learning—the moment you think you know everything is the moment you fall behind.

The most exciting phrase to hear in science, the one that heralds new discoveries, is not 'Eureka!' but 'That's funny...'

認為對自由的信念總會導致勝利是錯誤的。我們必須時刻做好失敗的準備。如果我們選擇自由，那么我們必須準備同它一起消亡。