"If the doors of perception were cleansed everything would appear to man as it is, infinite." W. B.
"The true method of knowledge is experiment." W. B.
"What is now proved was once only imagined." W.B.
"To see a world in a grain of sand and heaven in a wild flower Hold infinity in the palms of your hand and eternity in an hour." W. B.
I recommend the book Burning Bright, by Tracy Chevalier, for a dive in the London of 1792, following two children that inspired their neighbour, a Mr Blake.