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INTRODUCTION
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no generation will stay its hand from using them in order to cheapen fires for the next. Great cities will continue to grow, if population goes on increasing, though all the statesmanship in the world should be in favour of spreading population. Whether a skiff borne along the rapids of the St. Lawrence is wisely or badly steered makes the difference of life or death to its occupants, but does not affect its destination. It must descend the stream. The object of this book is to indicate in a very general way the direction towards which we are drifting in political and social life. It is not assumed, that any human sagacity can avert the fatality of our acts for centuries past, or of our characters, as we inherit or have fashioned them. If it be true, for instance, as these pages attempt to show, that the lower races are increasing upon the higher, and will some day confine them to a portion of the Temperate Zone, the result will have been the work of our own hands; and yet we cannot change our principles of action. We are bound, wherever we go, to establish peace and order; to make roads, and open up rivers to commerce; to familiarise other nations with a self-government which will one day make them independent of ourselves. We cannot even allow them to remain weak by destroying one another; and interest and humanity constrain us to interpose when there is a Tae-Ping rebellion in China, and when Africa is desolated by Arab slave-dealers. Nevertheless, if we cannot change manifest destiny, we may at least adapt ourselves to it, and make it endurable. We may circumscribe the growth of China, though we cannot altogether arrest it; and if we cannot hope that Europeans will ever people Africa, we may at least so work that European ideas shall one day be paramount