In simple terms, if you want superior performance, you must both remove obstacles and put in place reasons to work hard.

简而言之，如果老板希望员工有卓越的表现，既要扫清障碍，又必须给出有力的理由，才能促使员工努力工作。

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In real life, it is always hard to avoid inequalities. For example, there are inequality between men and women, young and old, inferior and superior.

现实生活中总难免会存在不平等的地方，比如男女之间的不平等、老少之间的不平等、上下级之间的不平等。

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A stainless steel and hard anodized aluminum alloy frame provides exceptional strength, ruggedness, and superior corrosion resistance.

阿不锈钢和铝合金阳极氧化硬框架提供了非凡的实力，坚固性，和优越的耐腐蚀性。

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It is hard to tell a colleague, it is hard to a child, it is hard to tell a superior and it is hard to tell a spouse.

FORBES: Magazine Article

And because Windows 7 machines tend to have at least two gigs of ram, a much larger hard drive, and a vastly superior dual-core processor, their functional value should last a little longer.

FORBES: Windows 8: Dead Before Arrival?

Good data underlies the ability of managers to improve operations, innovators to devise better solutions, and funders to reward superior performance, and good data is hard to come by in the nonprofit sphere.

FORBES: An Interview with Paul Carttar, Director of the Social Innovation Fund