At times he has argued powerfully in favour of a cap-and-trade bill to moderate climate change.
He has argued that banks might get round the rules by raising basic salaries, or operating elsewhere.
He has argued that setting political differences aside will allow the two sides to build mutual trust.
He has argued, with some justification, that Mr Cardoso failed to mobilise popular support for his policies.
For months now, he has argued that this is the root cause of his state's power crisis.
Since his appointment to the Supreme Court in 1986, he has argued against what he sees as unwarranted judicial activism.
He has argued a new settlement is needed before UK voters are asked if they want to end ties with Brussels.
He has argued that the PPIP is superior to a bad bank, but the weight of expert opinion, as he surely knows, disagrees.
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Companies with strong data businesses, he has argued, are now being re-rated in light of the success of pioneers such as Japan's DoCoMo.
He has argued that Cardiff's current home - the 2, 700 seat Wales National Ice Rink - is too small to sustain an ISL side.
Making details available would speed up the development of new medicines used to treat diseases as well as help economic growth, he has argued.
In addition, he has argued for years that hybrids are not just a temporary solution, but can provide an optimal balance of cost and flexibility.
He has argued that greater thought should be given to how postal services are delivered to country parishes, and believes a network of sub-post offices should be maintained.
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He has argued that religion should remain separate from government.
He has argued that no time limit should be imposed on the right of British citizens resident abroad to vote in their country of origin while they remain a citizen.
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He has argued that many of the large asteroids out there could have reached a stage of partial melting - even ones that at the surface appear to be unchanged.
In a running skirmish with Brian Wilson, the energy minister, he has argued that renewable-energy schemes should be properly costed and subsidised rather than propped up by fudged electricity prices.
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He has argued for years that the former have as much of a stake as anyone in countering the rising influence of the latter, and must be recognized and embraced as such.
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He has argued and will continue to argue that we need to do more, and we can do more right now -- not wait until November or next January, but right now -- to further grow the economy and have it create more jobs.
He has long argued for lower taxes, and he wants to end the popular suspicion of wealth.
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He has long argued for a more interventionist industrial policy, to boost exports and substitute imports.
Environmental activists, he has long argued, are doing more harm than good by exaggerating the threat from chemicals.
He has always argued that, if Serbs committed war crimes, they should be tried at home, not in The Hague.
But he has long argued that constitutional fiddling is not the way to win Quebeckers' hearts and ensure national unity.
Companies paying dividends, he has often argued publicly, tend to invest less in expanding their businesses and, thereby, slowing down their growth.
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He has long argued that fatigue due to overtraining is the cause.
"He has always argued vehemently that we should renegotiate the basis of the treaties and leave if we can't renegotiate them, " he said.
He has long argued for a return to the gold standard, as the next best thing to (and presumably a stepping-stone towards) a single currency for the world.
He has previously argued that RBS needs the freedom to recruit, reward and retain the quality of people necessary to generate profits and get it back on its feet again.
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