The constant influx of new cultures, new ideas and new ways of looking at old problems is a big part of the reason why America has been the most dynamic economy in the world for well over a century.

There are no new ideas. There are only new ways of making them felt.

I'm surprised by the talent I find all over. There are always new chefs who propose many interesting new ideas, new ways of looking at ingredients.

I can't understand why people are frightened of new ideas. I'm frightened of the old ones.

It's not that we need new ideas, but we need to stop having old ideas.

Novel ideas are unsettling, innovative concepts about important matters in human affairs is disruptive of the internal harmony that people prefer. There is a tendency even for the most logical and classically educated people steeped in rational scholastic traditions to assume that if any new hypothesis were correct, a scholar would already written it in a book.