“The mind can weave itself warmly in the cocoon of its own thoughts, and dwell a hermit anywhere.”

“Knowledge dwells in heads replete with thoughts of other men; wisdom in minds attentive to their own.”

“The mind is its own place, and in itself can make a heaven of hell, a hell of heaven..”

“One mind can think only of its own questions; it rarely surprises itself.”

“The only way you can own this moment is to evict the victim mentality from the dwelling of your mind.”

“Observation performed merely on its own is no more than what a machine can do—a surveillance camera, for instance. And imagination on its own, practiced by itself for too long, can cut you off from the world. You might wander away, like a hermit to a cave, becoming only a spirit to the rest of humanity. However, if you remain in the world, and you train yourself to combine observation and imagination in proper proportion...then you may change the world itself.”