Discouragement often comes to honest souls trying to live the best they can, in the thought that they are doing so little good in the world. Trifles unnoted by us may be links in the chain of some great purpose. In 1797, William Godwin wrote The Inquirer, a collection of revolutionary essays on morals and politics. This book influenced Thomas Malthus to write his Essay on Population, published in 1798. Malthus' book suggested to Charles Darwin a point of view upon which he devoted many years of his life, resulting, in 1859, in the publication of The Origin of Species,--the most influential book of the nineteenth century, a book that has revolutionized all science. These were but three links of influence extending over sixty years. It might be possible to trace this genealogy of influence back from Godwin, through generation and generation, to the word or act of some shepherd in early Britain, watching his flock upon the hills, living his quiet life, and dying with the thought that he had done nothing to help the world. Men and women have duties to others,--and duties to themselves. In justice to ourselves we should refuse to live in an atmosphere that keeps us from living our best. If the fault be in us, we should master it. If it be the personal influence of others that, like a noxious vapor, kills our best impulses, we should remove from that influence,--if we can _possibly_ move without forsaking duties. If it be wrong to move, then we should take strong doses of moral quinine to counteract the malaria of influence. It is not what those around us _do_ for us that counts,--it is what they _are_ to us. We carry our house-plants from one window to another to give them the proper heat, light, air and moisture. Should we not be at least as careful of ourselves? To make our influence felt we must live our faith, we must practice what we believe. A magnet does not attract iron, as iron. It must first convert the iron into another magnet before it can attract it. It is useless for a parent to try to teach gentleness to her children when she herself is cross and irritable. The child who is told to be truthful and who hears a parent lie cleverly to escape some little social unpleasantness is not going to cling very zealously to truth. The parent's words say "don't lie," the influence of the parent's life says "do lie." No man can ever isolate himself to evade this constant power of influence, as no single corpuscle can rebel and escape from the general course of the blood. No individual is so insignificant as to be without influence. The changes in our varying moods are all recorded in the delicate barometers of the lives of others. We should ever let our influence filter through human love and sympathy. We should not be merely an influence,--we should be an inspiration. By our very presence we should be a tower of strength to the hungering human souls around us. IV The Dignity of Self-Reliance