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一個人的幼兒時期，其實就是一種不斷習得能力的過程，這個周期性的刺激，將帶給兒童無限的歡樂和樂趣。

【釋義】沉著、細致、思想力、獨立性——內向者這四種特質恰是未來核心競爭力。

The fundamental impulse that sets and keeps the capitalist engine in motion comes from the new consumers' goods, the new methods of production or transportation, the new markets, the new forms of industrial organization that capitalist enterprise creates.

Good policy requires both sound theory and empirical validation.