Do Evolutionary Principles Derive from Observation, or Are They Imposed on It?

Geneticist Dan Graur of the University of Houston is implacably opposed to intelligent design -- and brutally honest about his opposition, which makes for bracing clarity in what he writes. Recently he tweeted the following 12 principles of evolution, which he drafted.

You have to love Graur's principles, because they capture orthodox neo-Darwinism in its purest form:

All of Evolutionary Biology in 12 Paragraphs, 237 Words, and 1,318 Characters

Evolutionary biology is ruled by handful of log...