William John Macquorn Rankine

ā€œDiscrepancy between theory and practice, which in sound physical and mechanical science is a delusion, has a real existence in the minds of men; and that fallacy, through rejected by their judgments, continues to exert and influence over their acts,ā€

William John Macquorn Rankine

Introductory Lecture on the Harmony of Theory and Practice in Mechanics (1856), p. 4