检验假设有效性的唯一相关标准是其预测与经验的比较。

I see a sweetness in her smile,Blight light shines from her eyes,But life is complete; contentment is mine, Just knowing that... just knowing that she's alive。

It is in the thirties that we want friends. In the forties we know they won't save us any more than love did.

如果你想成功，你必须愿意失败。