Thought

Matter is powerless, passive, inert.
Mind is force, energy, power. Mind shapes and controls matter.
Every form which matter takes is but the expression of some pre-existing thought.

But thought works no magic transformation; it obeys natural laws; it sets in motion natural forces; it releases natural energies; it manifests in your conduct and actions, and these in turn react upon your friends and acquaintances, and eventually upon the whole of your environment.