Invention

"Both optimists and pessimists contribute to society. The optimist invents the aeroplane, the pessimist the parachute."

"Where there is no hope, it is incumbent on us to invent it."

"I don't know who invented high heels, but all women owe him a lot!"

"If God did not exist, it would be necessary to invent him."

"Of all of our inventions for mass communication, pictures still speak the most universally understood language."

"He was a wise man who invented God."

"Nature is the source of all true knowledge. She has her own logic, her own laws, she has no effect without cause nor invention without necessity."

"Necessity is the mother of invention."

"People always fear change. People feared electricity when it was invented, didn't they?"

"I heard a definition once: Happiness is health and a short memory! I wish I'd invented it, because it is very true."

"Name the greatest of all inventors. Accident."