(image credits to Seeing Fresh)

I heard a thousand blended notes,
While in a grove I sate reclined,
In that sweet mood when pleasant thoughts
Bring sad thoughts to the mind.

To her fair works did nature link
The human soul that through me ran;
And much it grieved my heart to think
What man has made of man.

Through primrose-tufts, in that green bower,
The periwinkle trailed its wreathes;
And ’tis my faith that every flower
Enjoys the air it breathes.

The birds around me hopped and played:
Their thoughts I cannot measure,
But the least motion which they made,
It seemed a thrill of pleasure.

The budding twigs spread out their fan,
To catch the breezy air;
And I must think, do all I can,
That there was pleasure there.

If I these thoughts may not prevent,
If such be of my creed the plan,
Have I not reason to lament
What man has made of man?
— Lines / Written in Early Spring, William Wordsworth (1798)