Experience by itself teaches nothing... Without theory, experience has no meaning. Without theory, one has no questions to ask. Hence, without theory, there is no learning.
- W. Edwards Deming: The New Economics for Industry, Government, Education
Theory by itself teaches nothing. Application by itself teaches nothing. Learning is the result of dynamic interplay between the two.
- Peter Scholtes: The Leader’s Handbook: A Guide To Inspiring Your People and Managing the Daily Workflow