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司马牛问君子。孔子说:“君子不忧不惧。”问:“不忧不惧,就能叫做君子吗?”孔子说:“问心无愧,何来忧惧?”
世界充满了神奇的东西,它们在耐心地等待我们变得更有智慧。
The future is hidden even from those who make it.
In science, as in life, the important things are rarely simple or obvious.