“Many ideas are good for a limited time -- not forever.”
“Neither man or nation can exist without a sublime idea.”
“If you pray for only one thing, .let it be for an idea.”
“It is the nature of thought to find its way into action.”
“If you want to get across an idea, wrap it up in a person.”
“A crank is someone with a new idea -- until it catches on.”
“I had a monumental idea this morning, but I didn't like it.”
“The best way to have a good idea is to have a lot of ideas.”
“Very simple ideas lie within the reach only of complex minds”
“An idea is not responsible for the people who believe in it.”
“To love an idea is to love it a little more than one should.”
“Such as take lodgings in a head that's to be let unfurnished.”
“Nothing is more dangerous than an idea, when you only have one.”
“The difference between people and ideas is... only superficial.”
“The public interest is best served by the free exchange of ideas.”
“Get your ideas on paper and study them. Do not let them go to waste!”
“Great people talk about ideas. Small people talk about other people.”
“A new idea is like a child. It's easier to conceive than to deliver.”
“Ideas are a capital that bears interest only in the hands of talent.”
“All achievements, all earned riches, have their beginning in an idea.”
“Greater than the tread of mighty armies is an idea whose time has come.”
“It first appeared like a crazy idea. It turned out he had a great idea.”
“It is ideas, not vested interests, which are dangerous for good or evil.”
“Ideas that enter the mind under fire remain there securely and for ever.”
“So long as new ideas are created, sales will continue to reach new highs.”
“It doesn't matter how new an idea is: what matters is how new it becomes.”
“The ideas dictate everything, you have to be true to that or you're dead.”
“An idea that is not dangerous is unworthy of being called an idea at all.”
“An idea is a feat of association, and the height of it is a good metaphor.”
“A mind once stretched by a new idea never regains its original dimensions.”