He continued, "It is impossible to say with any certainty to which human race we belong".
The Duhem-Quine thesis, as it is known today, shows that negative experimental results may be attributed to any of the many hypotheses that are assumed in observations or experiments, and that the certainty to which Pascal aspired cannot be realized even when experimental results are inconsistent with expectations.
"He would not be able with certainty to say which was the globe, which the cube, whilst he only saw them," he wrote, "though he could unerringly name them by his touch".
This time three weeks ago, it was saying that Obama was a virtual certainty to win, which is what almost all the pundits, myself included, were saying.
We believe that the 2025 target should be brought forward by at least two years to give investors greater certainty to invest, which will improve security of supply".
Numerous versions of airway bills and itineraries are circulating with little certainty as to which are authentic.
If there are lots of clashes, too many solutions without certainty as to which will work best or nobody is willing to do the intricate hard stuff because they're in a "team", sometimes using fewer people makes sense.
In the French version of this passage, however, Descartes says that "moral certainty is certainty which is sufficient to regulate our behaviour, or which measures up to the certainty we have on matters relating to the conduct of life which we never normally doubt, though we know that it is possible, absolutely speaking, that they may be false" (PW 1, p. 289 n. 2).
Louisiana's Department of Wildlife and Fisheries has not compiled landings data for the season, so at this point it is hard to measure with any certainty the degree to which it is abnormal.
Second, we cannot establish with certainty the degree to which the TMP has improved outcomes, since no data are available prior to programme implementation.
It must be acknowledged that the mechanisms of water movement differ considerably from the mechanism of tracer molecule movements; we cannot state with certainty the extent to which water shifts are dictated by changes in extracellular channel flow versus shifts across blood vessel walls.
