Physicist Quotes and aphorisms about matter Stephen Hawking Stephen Hawking Richard P. Feynman Richard P. Feynman Richard P. Feynman Richard P. Feynman Michio Kaku ,, Time travel and teleportation will have to wait. It may take centuries to master these technology. ... Michio Kaku Werner Heisenberg ,, It is seen that both matter and radiation possess a remarkable duality of character, as they someti... Lawrence M. Krauss