(3) _Organic evil--Disease_--This also is the necessary condition of acquisition of knowledge of organic Nature--In the course of evolution it seems evil, but from the end it is seen to be good--In the physical world, laws of Nature are beneficent in their general operation, and only evil in their specific operation through our ignorance. 367 (4) _Moral evil--Moral disease_--Difference between this and other forms of evil--Can this also be transmuted into good?--This is only the highest form of evil, and therefore subject to the same laws of evolution--Here also elevation comes only through knowledge and power, and these only through struggle with apparent evil--In course it seems evil, looking back from end it is seen to be good to the race-- In all, therefore, the individual is sacrificed to the race, but impossible here--A way of escape found in the nature of a moral being--In this case not only final victory for the race, but also within the power of the individual--In this case success is in proportion to honest effort in right spirit --Roots, of evil in the necessary law of evolution--It is the necessary condition of all progress--Without it a moral being is impossible--From philosophic point of view things are not good and evil, but only higher and lower--All things good in their places--Evil is discord--Good is due relation --Action and reaction of higher and lower is the necessary condition of true virtue 369 PART I. _WHAT IS EVOLUTION?_ CHAPTER I. ITS SCOPE AND DEFINITION. =A Type of Evolution.=--Every one is familiar with the main facts connected with the development of an egg. We all know that it begins as a microscopic germ-cell, then grows into an egg, then organizes into a chick, and finally grows into a cock; and that the whole process follows some general, well-recognized law. Now, this process is evolution. It is more--it is _the_ type of all evolution. It is that from which we get our idea of evolution, and without which there would be no such word. Whenever and wherever we find a process of change more or less resembling this, and following laws similar to those determining the development of an egg, we call it evolution.