an 
mospheric temperature: many of both flourish only 
in a cold, and wither in a warm climate. Thus va- 
rious portions of the whole terraqueous globe are 
adapted to various conditions of the well-being of 
organized creatures, and the earth is filled with 
goodness and enjoyment. 
To those who will ask why enjoyment has its di- 
versities, as well as other conditions of being, its 
plus and its minus, the natural historian can only 
answer, “‘ It is a question not within the sphere of 
my inquiry. It relates to the motives of the great 
Cause of causes, of whom we are told, the eye of 
man hath not seen him at any time: man cannot 
behold him and live. Yet hath he not left himself 
without witness, in that he gives us rain from 
heaven, and fruitful seasons, Acts xiv. For the 
invisible things of him from the creation of the 
world are clearly seen, being understood by the 
things that are made, even his eternal power and 
Godhead, Romans i. 20.” Pope, however, gives the 
true confession : 
In vain the sage, with retrospective eye, 
Would from th’ apparent what conclude the why. 
Moral Essay, Ep. I. 
Say, first, of God above or man below, 
What can we reason but from what we know— 
He who through vast immensity can pierce, 
See worlds on worlds compose one universe, 
Observe how system into system runs, 
What other planets circle other suns, 
What varied being peoples every star, 
May tell why Heav’n has made us as we are. 
Essay on Man, Ep. I. 
