The child's first sentiment is self-love, his second, which is derived from it, is love of those about him; for in his present state of weakness he is only aware of people through the help and attention received from them. At first his affection for his nurse and his governess is mere habit. He seeks them because he needs them and because he is happy when they are there; it is rather perception than kindly feeling. It takes a long time to discover not merely that they are useful to him, but that they desire to be useful to him, and then it is that he begins to love them. So a child is naturally disposed to kindly feeling because he sees that every one about him is inclined to help him, and from this experience he gets the habit of a kindly feeling towards his species; but with the expansion of his relations, his needs, his dependence, active or passive, the consciousness of his relations to others is awakened, and leads to the sense of duties and preferences. Then the child becomes masterful, jealous, deceitful, and vindictive. If he is not compelled to obedience, when he does not see the usefulness of what he is told to do, he attributes it to caprice, to an intention of tormenting him, and he rebels. If people give in to him, as soon as anything opposes him he regards it as rebellion, as a determination to resist him; he beats the chair or table for disobeying him. Self-love, which concerns itself only with ourselves, is content to satisfy our own needs; but selfishness, which is always comparing self with others, is never satisfied and never can be; for this feeling, which prefers ourselves to others, requires that they should prefer us to themselves, which is impossible. Thus the tender and gentle passions spring from self-love, while the hateful and angry passions spring from selfishness. So it is the fewness of his needs, the narrow limits within which he can compare himself with others, that makes a man really good; what makes him really bad is a multiplicity of needs and dependence on the opinions of others. It is easy to see how we can apply this principle and guide every passion of children and men towards good or evil. True, man cannot always live alone, and it will be hard therefore to remain good; and this difficulty will increase of necessity as his relations with others are extended. For this reason, above all, the dangers of social life demand that the necessary skill and care shall be devoted to guarding the human heart against the depravity which springs from fresh needs. Man's proper study is that of his relation to his environment. So long as he only knows that environment through his physical nature, he should study himself in relation to things; this is the business of his childhood; when he begins to be aware of his moral nature, he should study himself in relation to his fellow-men; this is the business of his whole life, and we have now reached the time when that study should be begun.