CONCLUSION. 327 



folly, but by unshaken firmness and tenacity we shall 

 promote science and freedom. If this modest essay 

 has done anything to show the necessity of such cul- 

 ture, and in what way science and freedom, and these 

 two factors only, have brought forth fruit throughout 

 the history of the human race, my labour will be richly 

 rewarded, and I may say with satisfaction dies non 

 perdidi ! 



15 



