The first level of individual life is that of perception, more particularly sense-perception. This is the stage of our individual lives in which a percept translates itself into will immediately, without the intervention of either a feeling or a concept. The spring of action here involved may be called simply instinct. Our lower, purely animal, needs (hunger, sexual intercourse, etc.) find their satisfaction in this way. The main characteristic of instinctive life is the immediacy with which the percept starts off the act of will. This kind of determination of the will, which belongs originally only to the life of the lower senses, may, however, become extended also to the percepts of the higher senses. We may react to the percept of a certain event in the external world without reflecting on what we do, and without any special feeling connecting itself with the percept. We have examples of this especially in our ordinary conventional intercourse with men. The spring of this kind of action is called tact or moral good taste. The more often such immediate reactions to a percept occur, the more the agent will prove himself able to act purely under the guidance of tact; that is, tact becomes his characterological disposition. The second level of human life is feeling. Definite feelings accompany the percepts of the external world. These feelings may become springs of action. When I see a hungry man, my pity for him may become the spring of my action. Such feelings, for example, are modesty, pride, sense of honour, humility, remorse, pity, revenge, gratitude, piety, loyalty, love, and duty. [5] The third and last level of life is to have thoughts and ideas. An idea or a concept may become the motive of an action through mere reflection. Ideas become motives because, in the course of my life, I regularly connect certain aims of my will with percepts which recur again and again in a more or less modified form. Hence it is that, with men who are not wholly without experience, the occurrence of certain percepts is always accompanied also by the consciousness of ideas of actions, which they have themselves carried out in similar cases or which they have seen others carry out. These ideas float before their minds as determining models in all subsequent decisions; they become parts of their characterological disposition. We may give the name of practical experience to the spring of action just described. Practical experience merges gradually into purely tactful behaviour. That happens, when definite typical pictures of actions have become so closely connected in our minds with ideas of certain situations in life, that, in any given instance, we omit all deliberation based on experience and pass immediately from the percept to the action.