That's been one of my mantras - focus and simplicity. Simple can be harder than complex: You have to work hard to get your thinking clean to make it simple. But it's worth it in the end because once you get there, you can move mountains.

Steve Jobs

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Thinking is the hardest work there is, which is probably the reason so few engage in it.

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Hard knocks have a place and value, but hard thinking goes farther in less time.

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Any man who reads too much and uses his own brain too little falls into lazy habits of thinking.

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High thinking is inconsistent with a complicated material life based on high speed and imposed on us by mammon worship.

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There is nothing either good or bad but thinking makes it so.

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All I have to do is think and not be influenced by other.

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Bill GatesBusinessman

Elon MuskBusinessman