The mind, once stretched by a new idea, never regains its original dimensions.
There is nothing more powerful than an idea whose time has come.
The value of an idea lies in the using of it.
We shouldn't be looking for heroes, we should be looking for good ideas.
I had no idea that being your authentic self could make me as rich as I've become. If I had, I'd have done it a lot earlier.
A man may die, nations may rise and fall, but an idea lives on. Ideas have endurance without death.
I'm completely in favor of the separation of Church and State. My idea is that these two institutions screw us up enough on their own, so both of them together is certain death.
Some people entertain ideas; others put them to work.
I keep my ideals, because in spite of everything I still believe that people are really good at heart.
Sometimes the best, and only effective, way to kill an idea is to put it into practice.
Any idea, plan, or purpose may be placed in the mind through repetition of thought.
Many ideas grow better when transplanted into another mind than in the one where they sprung up.
We have some great ideas, but most of 'em come too late to do us any good.
Ideas that enter the mind under fire remain there securely and for ever.
To suppose that any form of government will secure liberty or happiness without any virtue in the people, is a chimerical idea.