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	There is no virtue in penance and fasting which waste the body; they are only fanatical and monkish.   
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	Prudence reproaches; conscience accuses.   
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	God put a secret art into the forces of Nature so as to enable it to fashion itself out of chaos into a perfect world system.   
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	We can judge the heart of a man by his treatment of animals.   
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	Freedom is independence of the compulsory will of another, and in so far as it tends to exist with the freedom of all according to a universal law, it is the one sole original inborn right belonging to every man in virtue of his humanity.   
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	The sum total of all possible knowledge of God is not possible for a human being, not even through a true revelation. But it is one of the worthiest inquiries to see how far our reason can go in the knowledge of God.   
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	[S]uppose the mind of [a] friend of humanity were clouded over with his own grief, extinguishing all sympathetic participation in the fate of others; he still has the resources to be beneficent to those suffering distress, but the distress of others does not touch him because he is sufficiently busy with his own; and now, where no inclination any longer stimulates him to it, he tears himself out of his deadly insensibility and does the action without any inclination, solely from duty.   
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	I learned to honor human beings, and I would find myself far more useless than the common laborer if I did not believe that this consideration could impart to all others a value establishing the rights of humanity.   
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	Art is purposiveness without purpose.   
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	Duty is the necessity to act out of reverence for the law.   
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	In the mere concept of one thing it cannot be found any character of its existence.   
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	Out of the crooked timber of humanity, no straight thing was ever made.   
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	Manners or etiquette ('accessibility, affability, politeness, refinement, propriety, courtesy, and ingratiating and captivating behavior') call for no large measure of moral determination and cannot, therefore, be reckoned as virtues. Even though manners are no virtues, they are a means of developing virtue.... The more we refine the crude elements in our nature, the more we improve our humanity and the more capable it grows of feeling the driving force of virtuous principles.   
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	Beneficence is a duty.   
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	The only thing permanent is change.   
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	In all judgements by which we describe anything as beautiful, we allow no one to be of another opinion.   
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	Honesty is better than any policy.   
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	Apart from moral conduct, all that man thinks himself able to do in order to become acceptable to God is mere superstition and religious folly.   
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	Always regard every man as an end in himself, and never use him merely as a means to your ends [i.e., respect that each person has a life and purpose that is their own; do not treat people as objects to be exploited].   
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	The arts of speech are rhetoric and poetry. Rhetoric is the art of transacting a serious business of the understanding as if it were a free play of the imagination; poetry that of conducting a free play of the imagination as if it were a serious business of the understanding.   
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	If you punish a child for being naughty, and reward him for being good, he will do right merely for the sake of the reward; and when he goes out into the world and finds that goodness is not always rewarded, nor wickedness always punished, he will grow into a man who only thinks about how he may get on in the world, and does right or wrong according as he finds advantage to himself.   
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	It is through good education that all the good in the world arises.   
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	Nature does nothing in vain, and in the use of means to her goals she is not prodigal. Her giving to man reason and the freedom of the will which depends upon it is clear indication of her purpose. Man accordingly was not to be guided by instinct, not nurtured and instructed with ready-made knowledge; rather, he should bring forth everything out of his own resources.   
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	All human knowledge begins with intuitions, proceeds from thence to concepts, and ends with ideas.   
