This is what is called evolution. It is an old, old idea, as old as human society, only it is getting fresher and fresher as human knowledge is progressing. There is one thing more, which the ancients perceived, but which in modern times is not yet so clearly perceived, and that is involution. The seed is becoming the plant; a grain of sand never becomes a plant. It is the father that becomes a child; a lump of clay never becomes the child. From what does this evolution come, is the question. What was the seed? It was the same as the tree. All the possibilities of a future tree are in that seed; all the possibilities of a future man are in the little baby; all the possibilities of any future life are in the germ. What is this? The ancient philosophers of India called it involution. We find then, that every evolution presupposes an involution. Nothing can be evolved which is not already there. Here, again, modern science comes to our help. You know by mathematical reasoning that the sum total of the energy that is displayed in the universe is the same throughout. You cannot take away one atom of matter or one foot-pound of force. You cannot add to the universe one atom of matter or one foot-pound of force. As such, evolution does not come out of zero; then, where does it come from? From previous involution. The child is the man involved, and the man is the child evolved.