Let me give you an idea of true wisdom and how it acts on man. True wisdom is like heat. Now you know that heat in the soil of the earth brings forth vegetation. Vegetation is like ideas. Wisdom warms the heart of the mind or matter. This puts vegetation or thought in action. So the mind brings forth food or ideas; these being forced by the heat or activity of the soil. They grow like a tree, and the root or fibers take root in the soil or mind. As it grows, it derives its life from them, and the mind, being fed by the wisdom of the world, the tree takes up the particles it receives.
The earth brings forth all creeping things; everything that has life, as well as all diseases. They grow in the mind, like a tree. For instance. . .
— August, 1861.
P. P. Quimby