We need a new look at the harnessing of scientific discoveries, to maximize their positive effects for the promotion of humanity as a whole and to minimize their negative effects.

我们需要用新的眼光来看待科学发现的利用，以最大限度地提高它们对促进全人类的积极影响，并最大限度地减少它们的负面影响。

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He said Americans now facing grave problems need to work together, tap their inner resolve, and seek progress one step at a time.

VOA: standard.2010.01.17

People need fat, and they need sugar, and they need variety--at least what their brain thinks.

人类需要脂肪和糖类,需要各种物质,至少大脑是这么认为的

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

"Everyone is entitled to free health care at the time of need, both in relation to consulting their general practitioner, and to hospital treatment and operations.

VOA: standard.2009.09.24

Meeting someone at their point of need with a solution, a salesperson can then create a lead who is interested in learning more about a product or service.

FORBES: How To Use Social Media To Make Sales

"I urge you not to take actions that could result in gridlock and that would be detrimental both to our troops abroad and to our citizens at home at their time of need, " Raines said.

CNN: Disaster Relief, Military Spending Bill Moves Forward In Senate

When students are growing antsy at their desks and need to get some physical exercise to let off some steam and reboot for more learning, they have the autonomy to go to the gym and work out.

FORBES: Physical Activity and Digital Learning: Two Peas in a Pod