From this time on, the universe is built up into an aggregate of permanent objects connected by causal relations that are independent of the subject and are placed in objective space and time.
-- Jean Piaget
   
Jean Piaget   Name:
Jean Piaget
Type:
Psychologist
Nationality:
Swiss
Birth:
August 9, 1896
Death:
September 16, 1980
https://www.nutquote.com/quote/Jean_Piaget