The way to combat noxious ideas is with other ideas. The way to combat falsehoods is with truth. (Quote by - William O. Douglas)

The value of an idea lies in the using of it. (Quote by - Thomas A Edison)

When ideas fail, words come in very handy. (Quote by - Goethe)

The human mind treats a new idea the same way the body treats a strange protein; it rejects it. (Quote by - P. B. Medawar)

An idea that is not dangerous is unworthy to be called an idea at all. (Quote by - Elbert Hubbard)

If anyone has a new idea in this country, there are twice as many people who keep putting a man with a red flag in front of it (Quote by - Prince Philip)

Lack of money is no obstacle. Lack of an idea is an obstacle. (Quote by - Ken Hakuta)

Good ideas are not adopted automatically. They must be driven into practice with courageous patience. (Quote by - Hyman Rickover)

Ideas...They have the power. (Quote by - Napolean Hill)

Great ideas are not charitable (Quote by - Henry de Montherlant)

Any man who afflicts the human race with ideas must be prepared to see them misunderstood. (Quote by - H L Mencken)

Men are strong only so long as they represent a strong idea. They become powerless when they oppose it. (Quote by - Sigmund Freud)

An invasion of armies can be resisted, but not an idea whose time has come. (Quote by - Victor Hugo)

I can't understand why people are frightened of new ideas. I'm frightened of the old ones. (Quote by - John Cage)

Ideas are like rabbits. You get a couple and learn how to handle them, and pretty soon you have a dozen. (Quote by - John Steinbeck)

There is no adequate defence, except stupidity, against the impact of a new idea (Quote by - Percy W. Bridgman)

It is a lesson which all history teaches wise men, to put trust in ideas, and not in circumstances. (Quote by - Ralph Waldo Emerson)

For parlour use, the vague generality is a lifesaver (Quote by - George Ade)

If an idea's worth having once, it's worth having twice. (Quote by - Tom Stoppard)

If at first the idea is absurd, then there is no hope for it. (Quote by - Aristotle)

If you steal ideas from one source, that's plagiarism, but if you steal ideas from more than one source, that's research. (Quote by - Laurendo Almeida)