Constructive: Affirming the Einsteins on the Court of Quaker Opinion, we follow the course of experimentation to arrive at truth.

Principled: Strange, then, that Einstein formed theories, as "special relativity", based on elementary principles.

Constructive: Experiments, like the double-slit, allow quantum leaps in an explanation of reality.

Principled: Supplying the "How" but not the "Why" of truth, as explanation is not understanding of reality.

Constructive: Before Einstein, Hendrik Lorentz, by way of experimentation, formulated the equation for relativity.

Principled: Supplying the how to which Einstein's logical postulation gave the why.

Constructive: Lab rats suffer the most.

Principled: And don't even know why.