In the matter of physics, the first lessons should contain nothing but what is experimental and interesting to see. A pretty experiment is in itself often more valuable than twenty formulae extracted from our minds.
Nothing divine dies. All good is eternally reproductive. The beauty of Nature re-forms itself in the mind, and not for barren contemplation, but for new creation.
The same things are best both for individuals and for states, and these are the things which the legislator ought to implant in the minds of his citizens.
To create and to annihilate material substance, cause it to aggregate in forms according to his desire, would be the supreme manifestation of the power of Man's mind, his most complete triumph over the physical world.
But when you first embark on the Path, your awareness won't be focused. You're likely to see all sorts of strange, dreamlike scenes. But you shouldn't doubt that all such scenes come from your own mind and nowhere else.