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How can you prove whether at this moment we are sleeping, and all our thoughts are a dream; or whether we are awake, and talking to one another in the waking state?
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Wise men speak because they have something to say.
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Serious things cannot be understood without laughable things, nor opposites at all without opposites.
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The best stomachs are not those which reject all foods.
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The function of the wing is to take what is heavy and raise it up in the region above.
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So the nature required to make a really noble Guardian of our commonwealth will be swift and strong, spirited, and philosophic.
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Aspiring minds must sometimes sustain loss.
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Ignorance: the root of all evil.
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I must yield to you, for you are irresistible.
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Madness comes from God, whereas sober sense is merely human.
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People too smart to get involved in politics are doomed to live in societies run by people who aren't.
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Everything that deceives may be said to enchant.
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When you admonish a wrongdoer, do so gently, that it may not lead to hostility.
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Laws are partly formed for the sake of good men, in order to instruct them how they may live on friendly terms with one another, and partly for the sake of those who refuse to be instructed, whose spirit cannot be subdued, or softened, or hindered from plunging into evil.
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To be sure I must; and therefore I may assume that your silence gives consent.
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Observe that open loves are held to be more honourable than secret ones, and that the love of the noblest and highest, even if their persons are less beautiful than others, is especially honourable.
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Few men are so obstinate in their atheism, that a pressing danger will not compel them to acknowledgment of a divine power.
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Arithmetic is a kind of knowledge in which the best natures should be trained, and which must not be given up.
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The most important part of education is proper training in the nursery.
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Let nobody speak mischief of anybody.
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Even in reaching for the beautiful there is beauty, and also in suffering whatever it is that one suffers en route.
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The love, more especially, which is concerned with the good, and which is perfected in company with temperance and justice, whether among gods or men, has the greatest power, and is the source of all our happiness and harmony, and makes us friends with the gods who are above us, and with one another.
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Harmony is a symphony, and symphony is an agreement; but an agreement of disagreements while they disagree there cannot be; you cannot harmonize that which disagrees.
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The greater part of instruction is being reminded of things you already know.