But also a very persistent one, despite there being clear evidence that it is not.

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Similarly, there are quite a few myths in business that are very persistent, despite clear evidence exposing them.

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I've had cases where men are very persistent and spend a big part of the night bugging you.

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Very well-organized and very persistent.

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They have been very persistent.

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Edwin Drake had no obvious qualifications to run the Seneca Oil Company except for two: as a retired railroad conductor, he could travel by train with a free pass, and--in what is required for the head of any start-up--he was very persistent by nature, indeed downright stubborn.

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But on the other hand, it would be unreasonable not to use this opportunity in order to -- not to discuss what we've been doing for the recent days or the recent time in a very coordinated and persistent manner.

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That level of development would require "a very high and persistent pace of new field developments", of more than 17 new fields per year over the next 25 years, which would be "a major challenge for the oil and gas supply chain".

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"It's not unusual for a surgeon to have to go back a second time and a third time because these infections -- look at that young lady in Georgia -- can spread in a very determined and rapid and persistent fashion, " Schaffner said.

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To bond market pros, the still-robust appetite for U.S. debt is either foolish ( Bill Gross may be on CNBC at this very moment saying that U.S. debt is less safe than Greek debt or somesuch) or too persistent to run from.

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