in Thoreau’s Journal:

I see a goldfinch go twittering through the still, louring day, and am reminded of the peeping flocks which will soon herald the thoughtful season. 

Ah! If I could so live that there should be no desultory moment in all my life! That in each season when some part of nature especially flourishes, then a corresponding part of me may not fail to flourish….I am less somnolent for the cool season.  I wake to a perennial day.