So, for Anaximander the basic “stuff” and qualities of life are opposites ... and those opposites are in conflict. He postulated a theoretical entity (apeiron) to explain observable phenomena. The word apeiron can mean “infinite” as well as “indefinite” (especially the latter, and in a qualitative as opposed to quantitative sense).
MINDFULNESS, PROFESSOR JOHN ANDERSON AND THE FACTICITY OF THINGS
EARLY GREEK PHILOSOPHERS AND MINDFULNESS [PART 1]
EARLY GREEK PHILOSOPHERS AND MINDFULNESS [PART 4]