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Play is the work of childhood.

The quality of a country's institutions is the single most important determinant of its long-term economic performance.

La douleur est un fruit que Dieu ne fait pas m?rir sur une branche trop faible.

A book is a mirror: if an ass peers into it, you can't expect an apostle to look out.

我們必須傾聽科學，也要傾聽社區——真正的解決方案存在于數據和人類需求的交叉點。