The meager period of time we call "ours" in the vast continuum from creation to dissolution has but one constant and that constant is change; our time is one of unprecedented change.
Iowa Science Teachers' Journal
© Copyright 1970 by the Iowa Academy of Science
Pella, Milton O.
"Science and Social Change,"
Iowa Science Teachers Journal: Vol. 7
, Article 5.
Available at: https://scholarworks.uni.edu/istj/vol7/iss3/5