Difcoveries made by the Microfcope. 303 
the mightiefl Monarch that ever lived ! 
What is the whole Race of Man ! 
A Mite upon a Cheefe is as large and 
conf derable, in Proportion, as a Man upon 
the Earth : the little Infedts feeding on the 
Leaves of Peach-Trees and Cherry-Trees, 
are no ill Reprefentation of Oxen grazing in 
large Paftures: and the minute Animalcules 
in a Drop of Water fwim about with as 
much Freedom as Whales do in the Ocean : 
—All have equal Room in Proportion to 
their own Bulk. 
The Term or Duration of Life, in dif¬ 
ferent Creatures, is likewife comparatively 
long or fhort, according to the Number, 
Quicknefs, or Slownefs of Ideas prefenting 
themfelves fucceflively to the Mind. For, 
when the Ideas fucceed one another fwiftly, 
and many of them are crowded into a nar¬ 
row Compafs, the Time, however fhort it 
may be, will feem long in Proportion to the 
Number of Ideas palling through it: on the 
contrary, when the Ideas are but few, and 
follow one another very flowly, a long Time 
will appear fhort, in Proportion to their 
flow Succeffion, and the Smallnefs of their 
Number. 
<c It is evident, fays Mr. Locke, to any 
££ one who will but obierve what paffes in 
ct his own Mind, that there is a Train of 
(e Ideas, which conftantly fucceed one ano- 
X 3 ther 
