The practice of that which is ethically best--what we call goodness or virtue--involves a course of conduct which, in all respects, is opposed to that which leads to success in the cosmic struggle for existence. In place of ruthless self-assertion it demands self-restraint.[7] But Huxley appears momentarily to have overlooked the fact that the struggle for existence itself puts a premium on self-restraint. For there is no stage of evolution in which the adjustment and co-operation of interests is not an aid to survival. One does not have to rise higher in the scale of life than the plants fertilized by insects, to observe the working of this principle. It is only the crudest and most impotent self-assertion that is "ruthless." The reason for this {22} is simply that the real enemy of every vital process is not another kindred process, but the mechanical environment. Life is essentially an assertion, not against life, but against death. Interests that expend their energies in destroying or crippling one another, slip back toward that primeval lifelessness from which they emerged. Restraint for the sake of organization is therefore only a developed and intelligent self-assertion. If one insists still upon drawing a line between cosmical and moral forces, let it be drawn at the point where there first arises that unstable complex called life. Life does in a sense oppose itself to the balance of nature. To hold itself together, it must play at parry and thrust with the very forces which gave it birth. Once having happened, it so acts as to persist. But it should be remarked that this opposition between the careless and rough course of the cosmos, the insidious forces of dissolution, on the one hand, and the self-preserving care of the organism on the other, is present absolutely from the outset of life. Vegetable and animal organisms do, it is true, adapt themselves to the environment; but their adaptation is essentially a method of using and modifying the environment in their own favor, precisely as is the case with human action. {23} Therefore Huxley's sharp distinction between natural plant life and man's artificial garden is misleading. 'The tendency of the cosmic process,' he says, 'is to bring about the adjustment of the forms of plant life to the current conditions; the tendency of the horticultural process is the adjustment of the conditions to the needs of the forms of plant life which the gardener desires to raise.'[8]