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He alone is free who lives with free consent under the entire guidance of reason

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whatsoever is, is in God, and without God nothing can be, or be conceived

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I do not know how to teach philosophy without becoming a disturber of the peace.

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I have made a ceaseless effort not to ridicule, not to bewail, not to scorn human actions, but to understand them.

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Things which are accidentally the causes either of hope or fear are called good or evil omens.

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The more you struggle to live, the less you live. Give up the notion that you must be sure of what you are doing. Instead, surrender to what is real w...more

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I do not know how to teach philosophy without becoming a disturber of established religion.

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I call him free who is led solely by reason.

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aquele que quer responder às injúrias com o ódio vive na tristeza ou na mágoa, aquele que quer vencer o ódio com o amor combate alegremente e sem temo...more

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I should attempt to treat human vice and folly geometrically... the passions of hatred, anger, envy, and so on, considered in themselves, follow from ...more

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Falsity consists in the privation of knowledge, which inadequate, fragmentary, or confused ideas involve.

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Most errors consist only in our not rightly applying names to things. For when someone says that the lines which are drawn from the center of a circle...more

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men, in so far as they live in obedience to reason necessarily do only such things as are necessarily good for human nature, and consequently for each...more

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Hatred is increased by being reciprocated, and can on the other hand be destroyed by love.

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Minds, however, are conquered not by arms, but by love and nobility.