Full Idea
Past, present and future I take to be all and equally real. A universal need not be instantiated now.
Gist of Idea
Past, present and future must be equally real if universals are instantiated
Source
David M. Armstrong (What is a Law of Nature? [1983], 06.2)
Book Reference
Armstrong,D.M.: 'What is a Law of Nature?' [CUP 1985], p.82
A Reaction
This is the price you must pay for saying that you only believe in universals which are instantiated.