THE PREFACE. 



Thu then WAS tt that obliged me to go foftrre about ^ 

 tofiewin common , how all thofe effc&s which are jo much 

 Admired in bodies , are , or may be m<de and continued by 

 tbefole order of qntntitative parts and locaU motion : thit 

 forced us J.o atJAtom.T*' nature , and to beginne our 



body. In doing which, out of the fir ft and moflft 'tuple noti- 

 on 0/Biggtntiie or Q/jantiry , wtjoundout theprimedi- 

 vifio* of Bodies, into, rare and D n(e .* then finding them 

 to be the Qualities of dividing and of being Hjvfded . (thjt 

 i^ of lt>ca.U iro f ion) n>ee gtined knowledge of thr cow 

 mon properties oj Gravity andLf vuv *fn*n$kr#oi*bjn4~ 

 lion o\ theft , nee retrived tb foure fi r ft Qu - I irie^ . and 

 bjthem, ihe Elements, when -nee had agrttd how tte 

 etementt were wadejve extmineahoce tbvr,Mwn and com* 

 pojttion raifeth thofeiecond q i.iliries, which are feene in 

 all tnixt bodut)*nd do makg their divipons. Thence .pro- 

 ceeding into the operations cf li^e, v>te rtfahted they an 

 Tcowpofedand Ordered meerely by the varieties of the fifrntgr : 

 ,^, that, fc ofe and tentaiy (the hig^fit thingt we can diC- 

 cerne out of man ) have no other fvurce , but atefutyttto 

 the Lawe* of part/ and of A ;rity andDenfttj 5 fo that in 

 the end we became afured of this important Maxim :T hat 

 nothing whaifot ver wee know to bee a Body , can be 

 exempted from the declared Laws, and orderly mo- 

 tions pf Bodies : unto which, let v* add* two oiler po~ 

 jition/) which fettaljo within our difcovtry : the firfl: that 

 it tt confta* tfy founded tn natu - e, that none of i he bod i ?s 

 Wt kno w,do move tberaielves, but their motion muft 

 be founded in fome thipg without th^m : 

 that no body moveth an other, unlt-fTe it felfebe 

 moved - in-ati will fottow evidently out ofthe 



) thatfome 9ther Principle 



