"Science gives us a powerful vocabulary, and it is impossible to produce a vocabulary with which one can only say nice things"

"It is only when they go wrong that machines remind you how powerful they are"

"Mother love is the fuel that enables a normal human being to do the impossible"

"What is real is not the external form, but the essence of things... it is impossible for anyone to express anything essentially real by imitating its exterior surface"

"Democracy is the art and science of running the circus from the monkey cage"

"Science never solves a problem without creating ten more"

"It is impossible to begin to learn that which one thinks one already knows"

"Powerful indeed is the empire of habit"

"It is impossible to suffer without making someone pay for it; every complaint already contains revenge"

"The most valuable possession you can own is an open heart. The most powerful weapon you can be is an instrument of peace"

"All science is either physics or stamp collecting"