But public health experts, including Dr. Gerberding, director of the Centers for Disease Control and Prevention, were more cautious, and worried about the vaccine's side effects.
More cautious types worry that the path will be "U shaped" -- that while the economy will eventually recover, recovery will take longer than the optimists expect.
Reviewing a performance of "Turandot" at the Met in The Times last year, Mr. Tommasini found his voice "uneven, leathery and curiously cautious," and worried about the fulfillment of his early promise.
Most commentators express a sense of relief at Mr Berlusconi's decision to leave office but sound a notably cautious note, worried that the political uncertainty will further hurt Italy on the markets.
Hillard, who died in 2000 at age 83, was the cautious, precise wordsmith worrying about each tree, while Fleishman was the instinctive and experienced public relations expert considering the forest at large.
Stocks have soared so high that a cautious person might start worrying about oxygen supply.
He had a cautious temperament, and worried about the impact that the sensational item might have.
"We must be part of a larger entity, hopefully in Europe, and then with the Americans".European companies give BAe's scheme a cautious welcome, but worry that it could be a ploy for the British firm to dominate its weaker partners.
For every professional advisor who suggests finding a way to bond with an admissions officer and fast, there is a more cautious one who worries about overkill.
And then, of course, this was immediately followed by the disclaimer, likely inserted by cautious staff members worried about how the Republicans might distort Obama's statement: "And by the way, those of us who carry on his party's legacy should remember that not every problem can be remedied with another government program or dictate from Washington".
