On Nali&al an f Moral J^hilos'ophy) 397 



at thci. knowledge fof(^ho$c qualities in every 

 order of beings,; which liavc no antecedent, 

 which tt-*rminate his enquiry, Avhich lie must 

 ivAv^t; a$, the tlements, the inherent nature of 

 e/y(9ry;joifder. These being admitted as data* 

 he^m^ltlveh- safely reason downwards, and 

 from thence as a sufficient cause, i satisfactorily 

 account for every phenomenon, and seise to 

 his; Uije, and apply to the most substantial and 

 gratifyiog purpo.scs, the solid knowledge which 

 he. ha$ acquired. 



'In this manner ha^f. Ntitural Philosophy been 

 succie&jfully prosecuted iipr a long period of 

 years, and the secrets of nature been explored 

 with honour and with advantage. The fos- 

 sil jst, the biotanist,^ the agriculturist, the hor- 

 tiqu)tarist> the anatomist, tl>e physician, the 

 philosopher, iualargc^ense, who comprehends 

 a)l these! departments ; and last, though not 

 Jeast, the- chemist, ha v,e learnt to. tread in this 

 patji, iiudhnve contributed to rescue philoso- 

 phy r&pn>[>the<U5grii0e of arbitrary and mis- 

 shapei>f,;theori|es;,.» TJie philosophy of mind 

 and moral invites, man to the dijjcovcry of their 

 n)ore important and sacred truths only in the 

 same road. As the principle which has at 

 length prevailed on man to quit tho road ol 

 conjecture in pa|u]ra|, philosophy, inquitting 

 which, if, at all, natural philosophv <;au alon^: 

 3 d2 



