From Essays

which is a means much more weak and cheap; but truth is so great a thing that we ought not to disdain any mediation that will guide us to it. Reason has so many forms that we know not to which to take; experience has no fewer; the consequence we would draw from the comparison of events is unsure, by reason they are always unlike. There is no quality so universal in this image of things as diversity and variety. Both the Greeks and the Latins and we, for the most express example of similitude, employ that of eggs; and yet there have been men, particularly one at Delphos, who could distinguish marks of difference amongst eggs so well that he never mistook one for another, and having many hens, could tell which had laid it.