IY. OF CLASSIFICATION. 
ui 
Tuz human mind is unable to take in the various 
forms of the vegetable kingdom at one view: it 
must therefore have recourse to some particular 
assistance in order to acquire more easily the know- 
ledge it aspires at, and to satisfy its curiosity. It 
attains its object in the most perfect manner when it 
reduces its knowledge to a system. ; 
System is a record of all the plants hitherto dis- 
covered, arranged according to certain characters, 
with their deviations. When a person has once ac- 
customed himself to some system, his progress will 
be doubled, and he wil form a much better judge- 
ment of plants than he was able to do beiore. 
§ 120. 
‘There have been men of high abilities who have 
maintained, that all nature might be reduced to sys- 
tem; there have, on the contrary, been other great 
2 men 
