Leave the beaten track occasionally and dive into the woods. Every time you do so you will be certain to find something that you have never seen before. Follow it up, explore all around it, and before you know it, you will have something worth thinking about to occupy your mind. All really big discoveries are the results of thought.

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The most successful men in the end are those whose success is the result of steady accretion... It is the man who carefully advances step by step, with his mind becoming wider and wider - and progressively better able to grasp any theme or situation - persevering in what he knows to be practical, and concentrating his thought upon it, who is bound to succeed in the greatest degree.

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When one door closes, another opens; but we often look so long and so regretfully upon the closed door that we do not see the one which has opened for us.

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A man, as a general rule, owes very little to what he is born with -- a man is what he makes of himself.

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Great discoveries and improvements invariably involve the co-operation of many minds. I may be given credit for having blazed the trail but when I look at the subsequent developments I feel the credit is due to others rather than to myself.

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Before anything else, preparation is the key to success.

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An inventor a man who looks upon the world and is not contented with things as they are. He wants to improve whatever he sees, he wants to benefit the world.

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When one door closes another door opens but we so often look so long and so regretfully upon the closed door, that we do not see the ones which open for us.

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What this power is, I cannot say. All I know is that it exists...and it becomes available only when you are in that state of mind in which you know EXACTLY what you want...and are fully determined not to quit until you get it.

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Man is an animal which, alone among the animals, refuses to be satisfied by the fulfilment of animal desires.

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What this power is I cannot say; all I know is that it exists and it becomes available only when a man is in that state of mind in which he knows exactly what he wants and is fully determined not to quit until he finds it.

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Man is an animal which, alone among the animals, refuses to be satisfied by the fulfillment of animal desires.

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When one door closes another door opens; but we often look so long and so regretfully upon the closed door, that we do not see the ones which open for us.

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Concentrate all your thoughts upon the work at hand. The sun's rays do not burn until brought to a focus.

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