Ideas without action are useless. —Helen Keller

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Ability may get you to the top, but it takes character to keep you there. ― John Wooden

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Ideas are easy. It's the execution of ideas that really separates the sheep from the goats. ―Sue Grafton

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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. --Swami Vivekananda

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The time-traveling is just too dangerous. Better that I devote myself to study the other great mystery of the universe: women! — Doc Brown

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Everything begins with an idea. —Earl Nightingale

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We must use time as a tool, not as a couch. — John F. Kennedy

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Ideas are more powerful than guns. We would not let our enemies have guns, why should we let them have ideas. --Joseph Stalin

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Your time is limited, so don't waste it living someone else's life. ―Steve Jobs

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Ability is what you're capable of doing. Motivation determines what you do. Attitude determines how well you do it. ― Lou Holtz

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