But first,we talk to some Americans who have retired from their professional lives but still work hard to help others.

VOA: special.2010.07.16

This means that you can rise above your problems if you have a goal and work very hard.

VOA: special.2009.03.01

Ted Kennedy was well liked in the Senate because of his hard work, friendliness and sense of humor.

VOA: special.2009.09.13

The hard work of this grassroots effort resulted in the first Earth Day on April twenty-second, nineteen seventy.

VOA: special.2010.04.21

Madam C.J.Walker explained it this way: "If I have accomplished anything in life, it is because I have been willing to work hard."

VOA: special.2010.03.28

But the work is hard. And getting all the oil from the seeds can be difficult.

VOA: special.2009.09.29

The kinds of minerals in clay affect how soft or hard it is to work with.

VOA: special.2009.09.09

She says this is because her parents taught her about the value of hard work.

VOA: special.2009.07.17

And one last expression, one that means do not worry or work too hard.

VOA: special.2009.06.07

They did not protest because the work was hard and the pay was low.

VOA: special.2010.05.13

This is because my father rolls up his sleeves and prepares to work hard.

VOA: special.2010.05.02

Most did not know they would face extremely hard work and terrible living conditions.

VOA: special.2009.02.04

Their faces show the hard work. Many visitors say it is an emotional experience.

VOA: special.2010.05.31

Helen Keller had to work hard to support herself after she finished college.

VOA: special.2009.11.15