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The challenge of modern physics is not just to find answers but to ask the right questions.
世界就是所有实际情况。
我们的生活在我们选择沉默面对重要事情的那一刻开始走向终结。
What you actually pay for something is at least twice the listed price because of the energy, time, money needed to set it up, learn, maintain, repair, and dispose of at the end. Not all prices appear on labels. Actual costs are 2x listed prices.