“What is true of the atomic weight of chlorine is true of many of the other elements.”— Francis William Aston
“For it is by earth that we see earth, by water water, by divine air air, and by destructive fire fire, and love by love, and strife by baneful strife.”— Empedocles
“These never cease their continual exchange, now through Love all coming together into one, now again each carried apart by the hatred of Strife.”— Empedocles
“The ultimate particles of all homogeneous bodies are perfectly alike in weight, figure, etc.”— John Dalton
“From these are all things that were and are and will be, and from these trees grow and men and women, and beasts and birds and water-nurtured fish, and long-lived gods, highest in honor.”— Empedocles
“Air, and ye elements, the eldest birth Of Nature's womb, that in quaternion run Perpetual circle, multiform; and mix And nourish all things.”— Mark Akenside