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The old believe everything; the middle-aged suspect everything; the young know everything.

采礦業的可持續性不是可選項，而是我們未來的必然選擇。

我寫作是為了理解我所想的。

人生沒有重來，所以要珍惜每一刻。

"We are all ghosts of our former selves, haunting the places we once knew."

Sometimes, the hardest thing in life is to know which bridge to cross and which to burn.

In the state of nature, profit is the measure of right.

No man, for any considerable period, can wear one face to himself and another to the multitude, without finally getting bewildered as to which may be the true.