Quote by John Dalton
"The imagination, when disciplined by reason and evidence, becomes the engine of discovery."
More from John Dalton
"Matter cannot be created, destroyed, or changed into a different substance by ordinary chemical processes."
"Nothing in the world happens by chance. Everything obeys immutable laws."
"The chemical elements are the ultimate constituents of matter."
"All matter is composed of atoms, which are indivisible and indestructible."