"The constructs of the natural sciences arise out of humanity's growing power to harness the forces of the world around us. Astronomy made possible the earliest calendars, predictions of eclipses, accurate marine navigation and so on...The modern sciences of physics, chemistry, information technology and the natural sciences in general have today given us collectively an immense power to harness natural forces of all kinds...

In this perspective, anything that enhances our power-the survival capabilities of the species as a whole at this stage of our evolution on this planet-can be termed 'science'; any human construct that denies us power, or restricts power only to some sectional interest or ruling elite, is ideology or myth...Regardless of the precise proportion of 'myth' to 'science' in any one narrative, it is the extent of the internalization of any construct-the global, species-wide range of the human power it can convey-which gives it whatever scientific status it can ultimately lay claim to."

from: Blood Relations: "Menstruation and the Origins of Culture" by Chris Knight