The mother-child relationship is paradoxical and, in a sense, tragic. It requires the most intense love on the mother's side, yet this very love must help the child grow away from the mother, and to become fully independent.

文字的纪律惩罚愚蠢和不诚实。

Both incentives and punishments elicit powerful responses.

我们成功的真正标准是我们如何改善全球健康结果。

The past is a foreign country; they do things differently there.

权力不是别人给你的。你必须自己去争取。