PREFACE. Xlll 



second place, it enlarges his genius, and out of that, his memory; 

 whereas dry knowledge cultivates his memory at the expense of his 

 mind. In the third place (or in the first again), such knowledge is 

 coherent with itself, and tends to be all known whenever a part of 

 it is known, giving the learner a constant sensation that he is devel- 

 oping it for himself, which lets him into the legitimate delight of 

 mental power. 



But only that is attractive which is allied to our business and 

 bosoms, and seems to have a life that understands our life, and vice 

 versa. On the other hand, repulsion is the effect of death and un- 

 kindness. Hence, to limit ourselves now to the human body, no 

 popular science of it can exist, but one that fills it with at least as 

 much life as its pupils feel throbbing in their bodies. Knowledge 

 draws them never until they are forced to cry out: "Ah! I see 

 myself more than myself in that wonderful glass!" If to their 

 curiosity about themselves any dead body near them mutters " germ- 

 cells,"* they feel dusty, degraded, and abhorrent. They must be 

 rendered better, bigger, and worthier for every look they give, or 

 their eyes will be averted from their books. 



Knowledge, however, is progressive, or its cars are of different 

 sizes. It will only be by slow degrees that we can accommodate the 

 world with seats in the trains of science. New inventions will be 

 requisite for each new population that is to be drawn. In the 

 meantime it is good to see this, and to place as an end the education 

 .of the universal people, because that education will require the 

 largest and noblest principles of common sense. To educate a 

 Mechanic's Institute demands far greater principles and more pro- 

 lific love, than to do the like for a Royal Society : you have to bring 

 things down and to incarnate them, to connect them with material 

 and substantial uses, and to give them both souls and bodies, for 

 the former ', whereas in teaching them to the learned, you escape 

 into laws and formulas, and shirk the problem of realizing the sub- 



* The intellectual correspondence of the doctrine of cell-germs and converti- 

 bility of forces, is found in the doctrine of subjectivity, which implies in the first 

 place that you are shut into yourself; and in the second, that whatever comes 

 to you, puts on your state, and is nothing but your own walls vibrating. This is 

 the philosophical, as the other view is the physical, jail. The way out of it is 

 by walking through the walls, which look granite, but are ;impudent mist. 

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