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The more determinedly I exist, as myself, within the conditions of the time, the more clearly I shall hear the language of the past, the nearer I shall feel the breath of universal history.

目的的概念在行為的科學解釋中沒有位置。

The only way to get to the top is to climb the mountain, not to wait for the elevator.

The future of mining lies in balancing profitability with environmental responsibility.