No one objects to agriculturists speaking of the potent effects of man's selection; and in this case the individual differences given by nature, which man for some object selects, must of necessity first occur.
Inork ez die eragozpenik jartzen gizakiaren hautespenaren ondoren ahaltsuez mintzo diren nekazariei, eta kasu honetan, naturak emaniko ezberdintasun indibidualek, gero gizakiak zerbaitetarako hautesten dituenek, izan behar dute aurretik nahitaez.