So, if evolution is to produce change, it must work more by the accretion of new components than by the continuous re-engineering of existing ones.
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It must work hard to safeguard their humanity and their dignity.
The trouble is that evolution has to make compromises, since it must work with the materials at hand, often while trying to solve several challenges at once.
Earlier the DfT upheld the appeal against Banes and told the authority it must work with Wiltshire and Somerset councils to "identify an alternative scheme that will be acceptable to all parties".
The apparent resignation comes against the backdrop of months of turmoil for the Welsh language broadcaster, which is facing substantial budget cuts and has been told it must work much more closely with the BBC.
It must be the work of our nation and of all nations.
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The Europeans have also taken a tough line this time: the agreement reached with Iran specifies no deadline, and they insist it must include all work towards enrichment.
Research firm GMI Ratings is in the business of worrying about things most of us consider inconsequential, and then GMI totes up all its little worries it must be stressful work and assigns risk rankings to companies.
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Every artwork they purchase must meet two criteria: It must be representative of the artist's total body of work, and it must impress both Jon and Evelyn as having the power to endure.
There are, of course, the more mundane threats, like 20-hour work days and the annoyance of friends who gush over how exciting it must have been to work with Brad Pitt after you ve staggered home bruised and filthy at 7 A.M.
And work it must, because as you know, data is the currency of tomorrow.
And for a common currency to work it must be applied across something which is at least close to being an optimal currency area.
It must never confuse Eurosocialist work programs with national defense needs.
The President made it clear that we must work together to do whatever is necessary to identify the perpetrators of this attack and bring them to justice.
For an e-mail to work it must be personal.
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If the GOP wants to learn how to communicate with minorities, it must listen to and work with the numerous minority Republicans who have been shouting this from the rooftop for years.
Without this federalization, it will agree that countries in the Euro zone that are in trouble must work themselves out of it by traveling the long and unbearable road of austerity.
But for comprehensive immigration reform to work, it must be clear from the outset that there is a pathway to citizenship.
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"It must have been incredibly hard work, I love the idea of doing a whole album in a day but the amount of takes they did was amazing, " he said.
In doing so, it believes councils would be forced to buy-in to the government's message that 'work must always pay': that anyone who can work and can find it, should do so and should be appreciably better-off than they would be claiming benefits.
It will also determine political strategies, notably that of the coal sector that must now work with an administration that it tried mightily to defeat.
If I believe in the Constitution, that it will work, then I must believe in you.
For it to work again, Republicans must satisfy the needs of both conservative Republicans and enough independents.
To make it work, the director must keep the top of verbal virtuosity spinning at all times, which can leave the viewer exhausted.
For it to work, a person must use a micro-payment network to buy food, which allows their purchases to be monitored and compared against their health records.
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