David Chalmers’ Hard Problem of Consciousness

Although called the father of modern philosophy, René Descartes became challenged in the last century for the split he created between body and mind, the mind-body dualism, or subject and object. For him, body became one thing; mind, another. This presents a problem. Why? Hold out your hand. Open the fist. Now close it. How did the gap get bridged between your hand, the object, and mind, the subject, if the two are split?

Benjamin Libet's Personal View of Free Will

"If the moon, in the act of completing its eternal way around the earth, were gifted with self-consciousness, it would feel thoroughly convinced that it was travelling its way of its own accord on the strength of a resolution taken once and for all.