We stand today on the edge of a new frontier - the frontier of the 1960's - a frontier of unknown opportunities and perils - a frontier of unfulfilled hopes and threats.
Democracy matters because it reflects an idea of equality and an idea of liberty. It reflects an idea of dignity, the dignity of the individual, the idea that each individual should have an equal vote, an equal say, in the formation of their government.
Three ideas stand out above all others in the influence they have exerted and are destined to exert upon the development of the human race: The idea of the Golden Rule; the idea of natural law; the idea of age-long growth or evolution.
Throughout the history of America, we have been a nation driven by the idea of the frontier - a place where law was slim and liberty was enormous, where you could make your way in the world based on your own ambition and abilities, not fenced in by the limitations of society.
And just as the terrorist seeks to divide humanity in hate, so we have to unify it around an idea. And that idea is liberty.
The United States was the first country in the history of the world to be consciously created out of an idea - and the idea was liberty.
I've long ago learned that if an idea will stand on its own, it'll stand having the light shone on it. But if you shine light on it and it kind of withers, then it probably wasn't a very good idea.
Liberty is the only idea which circulates with the human blood, in all ages, in all countries, and in all literature - liberty that is, and what cannot be separated from liberty, a love of country.
The more men believe an idea to be true the greater the likelihood that the idea is mistaken. Those who are right usually stand alone.
Liberty is not just an idea, an abstract principle. It is power, effective power to do specific things. There is no such thing as liberty in general; liberty, so to speak, at large.
Pictures are the idea in visual or pictorial form; and the idea has to be legible, both in the individual picture and in the collective context - which presupposes, of course, that words are used to convey information about the idea and the context. However, none of this means that pictures function as illustrations of an idea: ultimately, they are the idea. Nor is the verbal formulation of the idea a translation of the visual: it simply bears a certain resemblance to the meaning of the idea. It is an interpretation, literally a reflection.
Every sane man recognises that unlimited liberty is anarchy, or rather is nonentity. The civic idea of liberty is to give the citizen a province of liberty; a limitation within which a citizen is a king.
Take up one idea. Make that one idea your life - think of it, dream of it, live on that idea. Let the brain, muscles, nerves, every part of your body, be full of that idea, and just leave every other idea alone. This is the way to success.
Philadelphia, the foundation of freedom, liberty and democracy, I still believe in the idea of life, liberty and the pursuit of happiness.
What Bannon and Trump have presented us with is an idea of America that's not been the traditional idea, not the Walt Whitman idea, not the George Washington, Abraham Lincoln idea, which is one of welcoming because we're the last, best hope of Earth.
Ideas are nothing. They're irrelevant. If you think your idea is so important, you're doomed. The reality is if you don't like one idea, I've got 299 more. If I tell you my idea, and you can execute better against that idea than I can - great; I get to play a terrific game.