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心靈是解釋行為時不必要的建構。

It is far more difficult to murder a phantom than a reality.

人們常只想到自己的需要，而沒考慮自己的能力。王朔語錄

數學的力量來自于它的抽象和概括能力，將具體問題轉化為普遍真理。

Every improvement in the circumstances of the society tends either directly or indirectly to raise the real rent of land, to increase the real wealth of the landlord, his power of purchasing the labour, or the produce of the labour of other people.

如果你要思考，那就想大的。

The world is full of stories, waiting to be told.