But when they are, credit crunch permitting, Livingstone's enthusiasm for towers will be there for all to see.
She offered an explicit warning: "If the president decides not to permit the pipeline, he will reignite the enthusiasm many of my friends and I felt in 2008.
These causes of dissatisfaction, which are associated with the under-challenged profile, permit an understanding of the absence of enthusiasm and indifference that result from a lack of job incentives [ 27].
The joy he took in everything connected with "Sayonara," a film he had been preparing for two years, was so nearly flawless that it did not permit him to conceive that his star's enthusiasm might not equal his own.
A Concise History of Italy (1994) permitted him, however briefly, to reprise an earlier enthusiasm for the middle ages.
The lands of the O'Neills and even of loyal Gaelic lords were declared forfeit in 1569, and, in a wave of enthusiasm for colonization, various questionable adventurers were permitted to attempt substantial plantations in Munster, Leinster, and Ulster.
But there is a problem, he says: The town officials who control the process, by deciding whether and when to issue the necessary permits to private developers, are civil servants with limited enthusiasm.
Wittwer, whose Kempinski firm will be the first western hospitality business permitted to operate in the country, shared the authorities' enthusiasm, describing the Ryugyong as a potential "money-printing machine if North Korea opens up".
Whether green enthusiasm for Mr Obama can be reactivated as those legal challenges to the permitted ozone limit soon will be will depend upon his response.
The president's decision to halt deportations and offer work permits to over 1 million young people delivered a huge spike in Latino voter enthusiasm.
