60. The spirits come not to free man from work, study, or research; they bring no ready- made science; they leave him to his own strength in that which he can discover for himself. The spirits know perfectly well today that for a long time experience has demonstrated the error of the opinion which attributed to spirits the possession of all knowledge and wisdom, and that it was sufficient to address one’s self to the first spirit which came; in order to know all things. After leaving the Earth, spirits occupy one out of many spiritual planes, as upon Earth there are superior and vulgar persons. Many spirits then know scientifically and philosophically less than certain men; they tell no more, and often less, than they know. As among men, the most advanced can teach us more, and give us more judicious advice, than those less advanced. To demand counsel of spirits is not to address supernatural powers, but persons like ourselves, - those to whom we would turn for counsel in their earthly life, as parents, friends, and individuals more enlightened than ourselves. Here is an important fact for those who are ignorant of Spiritism, and have formed a false idea of the nature of the world of spirits and of the condition of affairs beyond the tomb.