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Grief is not linear. It doesn't follow a neat trajectory from denial to acceptance.

The PAC learning framework provides a formal way to analyze the efficiency and effectiveness of learning algorithms.

Courage in monetary policy is not the absence of fear but the judgment that something else is more important than fear.

Children are the most honest critics; they will tell you exactly what they think.

成功不在于你賺了多少錢，而在于你對人們生活的影響。

最好的品牌不只是銷售產品，它們銷售情感和體驗。