“[on the greatest invention] Liquid Prell.”

“We are in the position of the man who has only two ambitions in life. One is to invent the universal solvent which will dissolve any solid substance, and the second is to invent the universal container which will hold any liquid. Whatever this inventor does, he will be frustrated.”

“Without question, the greatest invention in the history of mankind is beer. Oh, I grant you that the wheel was also a fine invention, but the wheel does not go nearly as well with pizza.”

“Pirates are perhaps the greatest invention of Earth people," Elizabeth interrupted loftily, "and their pirate stories are wonderful entertainment for small children. We have to give Earth people credit for that, they invented pirates.”

“Sleep was the greatest invention in the history of mankind. When I was sleeping, I wasn’t feeling guilty, or miserable, or sad.”

“Whisky is liquid sunshine.”

“Substances can exist in three states – gas, liquid and solid. Water exists in all three states: gas (steam or water vapour), liquid (ordinary water) and solid (ice}. Properties of gases, liquids and solids are different.”

“Plastic automatism.... as employed by modern masters, like Masson, Miro, [both artists of Surrealism] and Picasso, is actually very little a question of the unconsciousness. It is much more a plastic weapon with which to invent new forms. As such it is one of the twentieth century greatest formal inventions.”

“If a 19th century capitalist Machiavelli had wished to cripple the socialist intelligentsia of the 20th century, he could have invented no more cogent weapon than the labour theory of value. Yet this theory was the invention, not of a defender of capitalism, but of its greatest critic: Karl Marx.”

“Her heart was made of liquid sunsets.”