A garden is like those pernicious machineries which catch a man's coat-skirt or his hand, and draw in his arm, his leg , and his whole body to irresistible destruction.
The common experience is, that the man fits himself as well as he can to the customary details of that work or trade he falls into, and tends it as a dog turns a spit. Then he is part of the machine he moves; the man is lost.
It is so wonderful to our neurologists that a man can see without his eyes, that it does not occur to them that is just as wonderful that he should see with them; and that is ever the difference between the wise and the unwise: the latter wonders at what is unusual, the wise man wonders at the usual.
The use of natural history is to give us aid in supernatural history: the use of the outer creation, to give us language for the beings and changes of the inward creation.