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The only limit to our realization of tomorrow will be our doubts of today.

I have always considered that the true test of a machine is its practical utility in the hands of the common laborer.

天生我才必有用。

"The essence of mathematics lies in its freedom."

大海不拒絕各種各樣的水，所以才能成就它的博大；大山不拒絕形形色色的土石，所以才能成就它的高峻；賢明的君主不嫌棄百姓，所以能夠聚集眾多的臣民；讀書人不厭倦學習，所以能達到圣賢的境界。

The most successful societies in the future will be those that are able to combine the efficiency and technological dynamism of the market with the social safety nets and political stability provided by the state.