Thus, in the argument I have set before you, I have been following what I take to be the only truly rational method of getting at the problem. (religion-online.org)
There are also rational methods for transporting milk powder to recombining plants in bulk bins containing 200 — 1,000 kg. (dairyprocessinghandbook.com)
It seems to me the only truly accurate measure of sociological equivalency would be found by measuring how much two groups of people interact, as you can not necessarily predict human beliefs and behavior through rational methods. (politics.stackexchange.com)