Whatever measures are deemed appropriate to be taken, it is essential that they are explained to the public.
For this reason, it is essential that the outside world puts pressure on Mr dos Santos.
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It is essential that the painful impact of David Cameron's decisions is minimised wherever possible.
"It is essential that hospitals provide the safest possible care for patients, " he said.
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However, for this growth to continue unabated, it is essential that apps continue to remain free.
It is essential that spirituality and ethics find their rightful place in international relations.
But it is essential that next week's publication is accompanied by a very definite "health warning".
However, it is essential that cuts to the Medicare program be made in a responsible and productive way.
With a process for effective marketing measurement in place, it is essential that all relevant staff be aligned.
"It is essential that fans see the system in action to know that it is working, " he added.
When a recipe calls for so few ingredients, it is essential that you be particular about their quality.
It is essential that he continues on his quest for a new format for the department store industry.
To ensure a future where we all have access to water and sanitation it is essential that we cooperate.
The board of Mid Staffordshire NHS Trust has said it is essential that acute services stay at Stafford Hospital.
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When pursuing change, it is essential that leaders communicate clearly with their employees.
It is essential that he now extends this commitment to colleges and universities.
But it is essential that this should not come at the expense of widening inequalities of access to these professions.
It is essential that we continue our efforts to move in the right direction and generate steady, strong job gains.
It is essential that governments do all they can to ensure safe conditions for journalists to carry out their work.
So it is essential that on this occasion the two sides in Cyprus should take full ownership of whatever is negotiated.
It is essential that the government ensure that contracts are transparent so that we can judge whether they are good value.
"It is essential that the British public understands the huge sacrifice and commitment made by our servicemen and women, " he said.
"It is essential that if such discussions are to have any credibility or success, details of them remain confidential, " he added.
It is essential that critically important questions are raised and ultimately addressed.
It is essential that both expenditure and cost recovery rates are improved.
UNESCO: Summary of Senior Management Team meeting of 2 July 2012
It is essential that wind energy not be directly put into the grid, even a smart grid, but used as locally as possible.
First, it is essential that you begin with one skill that you can master, and that serves as a foundation for acquiring others.
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It is essential that any team driving a startup have the guts to take the necessary risks involved with creating a truly disruptive product.
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"It is essential that an agreement is reached by the eurogroup on Sunday evening in Brussels on a financial assistance programme for Cyprus, " he said.
We are really pushing things to the limit in terms of their strength, so it is essential that we get the dynamics of motion right.
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