To give a complete mechanical explanation of electrical phenomena, reducing the laws of physics to the fundamental principles of dynamics is a problem that has attracted many investigators.... If the problem admitted of only one solution, the possession of this solution, which would be the truth, could not be bought too dearly.
In: Frederick Vreeland, Maxwell's Theory and Wireless Telegraphy. Part 1. Maxwell's Theory, and Hertzian Oscillations. Part 2, Part One, Chapter I (p. 1)