Nature's creative power is far beyond man's instinct of destruction.

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How many things have been denied one day, only to become realities the next!

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Science, my lad, is made up of mistakes, but they are mistakes which it is useful to make, because they lead little by little to the truth.

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I believe that water will one day be employed as fuel, that hydrogen and oxygen which constitute it, used singly or together, will furnish an inexhaustible source of heat and light, of an intensity of which coal is not capable.

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There are no impossible obstacles; there are just stronger and weaker wills, that’s all!

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It seems wisest to assume the worst from the beginning...and let anything better come as a surprise.

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I believe cats to be spirits come to earth. A cat, I am sure, could walk on a cloud without coming through.

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There is hope for the future, and when the world is ready for a new and better life, all these things will some day come to pass, - in God's good time.

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Travel enables us to enrich our lives with new experiences, to enjoy and to be educated, to learn respect for foreign cultures, to establish friendships, and above all to contribute to international cooperation and peace throughout the world.

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We may brave human laws, but we cannot resist natural ones.

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