You've ALWAYS got to look at important things from as many angles as you can. Reminds me of an anecdote I read in one of Dawkins' great books. He referred to a necker cube. Basically, a plain 3D cube. Draw one, and you see the cube that you've drawn. But then, if you've not done any shading, you can see that the cube could be a different cube viewed from a different angle. Once you're at this stage, your higher thought processes should flip between the two. Continuously.

It's a little like the pygmy who leaves the jungle for the first time in his life and heads to the top of the hill. The buffalo he sees in the distance, he thinks are ants. As he has no experience of great distance (and sizeable bovids). When he finally comprehends the size of the planet, then he can accept that he's not looking at tiny animals close up but is actually looking at huge animals in the distance.

So, yeah, I love your point 4 (and the other points, too). Good stuff. :)