INFLUENCES IN LITERATURE. 117 
poet to depend wholly upon human actions and 
conversations for his effects. The moral of 
all this need not be appended. Out-door 
life is the great recreator and regenerator. Na- 
ture is steeped in the elixir which has power 
to freshen and renew our highest facilities. If 
“the proper study of mankind is man,” still 
it is safe to say that sound lungs, healthy 
blood, a good appetite, and a clear brain, are 
indispensable to such study, and are to be had 
only by those who breathe pure air, digest their 
food, and read the human heart by the light 
of the sun. 
