If we encourage our young people to believe in the future, and give them solid evidence for believing we'll find both crime and poverty shrinking to manageable proportions.

如果我们鼓励我们的年轻人对未来充满信心，并为他们的信念提供确凿的证据，我们就会发现犯罪和贫困都将减少到可控的程度。

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While it is possible that much of our food will be grown in skyscrapers in future, most experts currently believe it is far more likely that we will simply use the space available on urban rooftops.

虽然未来我们的大部分食物可能会在摩天大楼里种植，但目前大多数专家认为，我们更有可能只是利用城市屋顶上的可用空间。

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I believe we can fashion a brilliant future of peace for our children.

我相信，为了我们的孩子我们能够缔造和平的辉煌未来。

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"We believe that the future of our industry is in mobile broadband and services - and we aim to be an undisputed leader in these areas, " said Rajeev Suri, chief executive officer of Nokia Siemens Networks.

ENGADGET: Nokia Siemens to cut 17,000 jobs as part of global restructuring

We have done so out of enlightened self-interest -- because we seek a better future for our children and grandchildren, and we believe that their lives will be better if other peoples' children and grandchildren can live in freedom and prosperity.

CNN: Obama: 'Peace requires responsibility'

And we refuse to believe that our politics are too broken to make the energy future we dream of a reality.

WHITEHOUSE: President Obama Explains the Smart Grid and Economic Recovery | The White House