We may notice here, however, one of those curious illusions, which the intimate associations of ideas with words, so often, and sometimes so inconveniently, occasion. The term "I conceive," has the form of an active verb; and with _the form of an active verb_ THE IDEA OF ACTION is so frequently conjoined, that we are rarely able to separate them. By this means, the idea of activeness is often mixed up with other ideas, when it is wholly misplaced and illusive. I use the same form of expression when I say, I dream; as when I say, I study, I argue, I imagine. In these cases the idea of what I call activity is properly included: in the expression I dream, it is not properly included; though the active form of the verb so invariably calls up a certain idea of activity, and so strongly tends to mix it with the other ideas, that in using the term, "I dream," we seem to consider ourselves as, somehow, agents. Even in using the term, "I die," we cannot escape the illusion; though the ideas are so highly incongruous. It would be obviously absurd to affirm that we are less active when we say we have an idea, than when we say we have a conception, yet there is constantly a feeling, when we use the phrase "I conceive," as if we were in some manner active; and no such feeling, when we use the phrase "I have an idea." The terms, therefore, the concrete "conceive," and its abstract "conception," are somewhat inconvenient, and misguiding, as they infuse into the complex ideas to which they are applied, an ingredient which does not belong to them. The relation which the words, CONSCIOUSNESS, and {236} CONCEPTION, bear to one another, is now, therefore, apparent. Consciousness is the more _generical_ of the two names. Conception is the name of a class _included under_ the name Consciousness. Consciousness applies to sensations, and to ideas, whether simple or complex; to all the feelings, whatsoever they may be, of our sentient nature. Conception applies only to ideas; and to ideas, only in a state of combination. It is a generical name including the several classes of complex ideas.[76]