But thought as an object of observation differs essentially from all other objects. The observation of a table, or a tree, occurs in me as soon as those objects appear within the horizon of my field of consciousness. Yet I do not, at the same time, observe my thought about these things. I observe the table, but I carry on a process of thought about the table without at the same moment observing this thought-process. I must first take up a standpoint outside of my own activity, if I want to observe my thought about the table, as well as the table. Whereas the observation of things and processes, and the thinking about them, are everyday occurrences making up the continuous current of my life, the observation of the thought-process itself is an exceptional attitude to adopt. This fact must be taken into account, when we come to determine the relations of thought as an object of observation to all other objects. We must be quite clear about the fact that, in observing the thought-processes, we are applying to them a method which is our normal attitude in the study of all other objects in the world, but which in the ordinary course of that study is usually not applied to thought itself. Someone might object that what I have said about thinking applies equally to feeling and to all other mental activities. Thus it is said that when, e.g., I have a feeling of pleasure, the feeling is kindled by the object, but it is this object I observe, not the feeling of pleasure. This objection, however, is based on an error. Pleasure does not stand at all in the same relation to its object as the concept constructed by thought. I am conscious, in the most positive way, that the concept of a thing is formed through my activity; whereas a feeling of pleasure is produced in me by an object in a way similar to that in which, e.g., a change is caused in an object by a stone which falls on it. For observation, a pleasure is given in exactly the same way as the event which causes it. The same is not true of concepts. I can ask why an event arouses in me a feeling of pleasure. But I certainly cannot ask why an occurrence causes in me a certain number of concepts. The question would be simply meaningless. In thinking about an occurrence, I am not concerned with it as an effect on me. I learn nothing about myself from knowing the concepts which correspond to the observed change caused in a pane of glass by a stone thrown against it. But I do learn something about myself when I know the feeling which a certain occurrence arouses in me. When I say of an object which I perceive, "this is a rose," I say absolutely nothing about myself; but when I say of the same thing that "it causes a feeling of pleasure in me," I characterise not only the rose, but also myself in my relation to the rose.