11.] The special conditions which call for the existence of philosophy maybe thus described. The mind or spirit, when it is sentient or perceptive, finds its object in something sensuous; when it imagines, in a picture or image; when it wills, in an aim or end. But in contrast to, or it may be only in distinction from, these forms of its existence and of its objects, the mind has also to gratify the cravings of its highest and most inward life. That innermost self is thought. Thus the mind renders thought its object. In the best meaning of the phrase, it comes to itself; for thought is its principle, and its very unadulterated self. But while thus occupied, thought entangles itself in contradictions, _e.g._ loses itself in the hard-and-fast non-identity of its thoughts, and so, instead of reaching itself, is caught and held in its counterpart. This result, to which honest but narrow thinking leads the mere understanding, is resisted by the loftier craving of which we have spoken. That craving expresses the perseverance of thought, which continues true to itself, even in this conscious loss of its native rest and independence, 'that it may overcome' and work out in itself the solution of its own contradictions. To see that thought in its very nature is dialectical, and that, as understanding, it must fall into contradiction,--the negative of itself, will form one of the main lessons of logic. When thought grows hopeless of ever achieving, by its own means, the solution of the contradiction which it has by its own action brought upon itself, it turns back to those solutions of the question with which the mind had learned to pacify itself in some of its other modes and forms. Unfortunately, however, the retreat of thought has led it, as Plato noticed even in his time, to a very uncalled-for hatred of reason (misology); and it then takes up against its own endeavours that hostile attitude of which an example is seen in the doctrine that 'immediate' knowledge, as it is called, is the exclusive form in which we become cognisant of truth.