It is as difficult for most poor people to truly believe that they could someday escape poverty as it is for most wealthy people to truly believe that their wealth could someday escape them.

Courage promotes leaders; fear demotes them. Most people who have difficulties climbing up success ladders are fans of fear.

For we may remark generally of our mathematical researches, that these auxiliary quantities, these long and difficult calculations into which we are often drawn, are almost always proofs that we have not in the beginning considered the objects themselves so thoroughly and directly as their nature requires, since all is abridged and simplified, as soon as we place ourselves in a right point of view.

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