“Down the winding cavern we groped our tedious way, till a void boundless as the nether sky appeared beneath us, and we held by the roots of trees and hung over this immensity; but I said: if you please we will commit ourselves to this void and see whether providence is here also.”

“If the doors of perception were cleansed every thing would appear to man as it is, Infinite. For man has closed himself up, till he sees all things thro' narrow chinks of his cavern.”

“I was angry with my friend: I told my wrath, my wrath did end. I was angry with my foe; I told it not, my wrath did grow.And I water'd it in fears, Night & morning with my tears; And I sunnéd it with smiles And with soft deceitful wiles. And it grew both day and night, Till it bore an apple bright; And my foe beheld it shine, And he knew that it was mine, And into my garden stole, When the night had veil'd the pole: In the morning glad I see My foe outstretch'd beneath the tree.”

“How do you know but ev’ry Bird that cuts the airy way, Is an immense world of delight, clos’d by your senses five?”

“And did those feet in ancient timeWalk upon England's mountains green?And was the holy Lamb of GodOn England's pleasant pastures seen?And did the Countenance DivineShine forth upon our clouded hills?And was Jerusalem builded here,Among these dark Satanic Mills?Bring me my Bow of burning gold:Bring me my Arrows of desire:Bring me my Spear: O clouds unfold!Bring me my Chariot of fire!I will not cease from Mental Fight,Nor shall my Sword sleep in my hand,Till we have built JerusalemIn England's green & pleasant Land.”

“A fool sees not the same tree that a wise man sees.”

“The tree which moves some to tears of joy is in the eyes of others only a green thing that stands in the way. Some see nature all ridicule and deformity... and some scarce see nature at all. But to the eyes of the man of imagination, nature is imagination itself.”