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I hold that it is only when we can prove everything we assert that we understand perfectly the thing under consideration.

Gottfried Leibniz

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Gottfried Leibniz
Age: 70 †
Born: 1646
Born: July 1
Died: 1716
Died: November 14
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Gottfried Wilhelm
Leibniz
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Freiherr Gottfried Wilhelm von Leibniz
Gottfried Leibniz
Leibnitz
Consideration
Perfectly
Prove
Hold
Understand
Everything
Thing
Assert

More quotes by Gottfried Leibniz

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Our reasonings are grounded upon two great principles, that of contradiction, in virtue of which we judge false that which involves a contradiction, and true that which is opposed or contradictory to the false.
Gottfried Leibniz
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For since it is impossible for a created monad to have a physical influence on the inner nature of another, this is the only way in which one can be dependent on another.
Gottfried Leibniz
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He who understands Archimedes and Apollonius will admire less the achievements of the foremost men of later times.
Gottfried Leibniz
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In whatever manner God created the world, it would always have been regular and in a certain general order. God, however, has chosen the most perfect, that is to say, the one which is at the same time the simplest in hypothesis and the richest in phenomena.
Gottfried Leibniz
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Therefore, I have attacted [the problem of the catenary] which I had hitherto not attempted, and with my key [the differential calculus] happily opened its secret. Acta eruditorum
Gottfried Leibniz
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For things remain possible, even if God does not choose them. Indeed, even if God does not will something to exist, it is possible for it to exist, since, by its nature, it could exist if God were to will it to exist.
Gottfried Leibniz
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The dot was introduced as a symbol for multiplication by Leibniz. On July 29, 1698, he wrote in a letter to Johann Bernoulli: I do not like X as a symbol for multiplication, as it is easily confounded with x.
Gottfried Leibniz
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Why is there anything at all rather than nothing whatsoever?
Gottfried Leibniz
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Make me the the master of education, and I will undertake to change the world.
Gottfried Leibniz
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There is no way in which a simple substance could begin in the course of nature, since it cannot be formed by means of compounding.
Gottfried Leibniz
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But it is the knowledge of necessary and eternal truths which distinguishes us from mere animals, and gives us reason and the sciences, raising us to knowledge of ourselves and God. It is this in us which we call the rational soul or mind.
Gottfried Leibniz
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Nothing is more important than to see the sources of invention which are, in my opinion more interesting than the inventions themselves.
Gottfried Leibniz
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Music is nothing but unconscious arithmetic.
Gottfried Leibniz
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There is nothing without reason.
Gottfried Leibniz
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The art of discovering the causes of phenomena, or true hypotheses, is like the art of deciphering, in which an ingenious conjecture often greatly shortens the road.
Gottfried Leibniz
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And there must be simple substances, because there are compounds for the compound is nothing but a collection or aggregatum of simples.
Gottfried Leibniz
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God's relation to spirits is not like that of a craftsman to his work, but also like that of a prince to his subjects.
Gottfried Leibniz
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Indeed in general I hold that there is nothing truer than happiness, and nothing happier and sweeter than truth.
Gottfried Leibniz
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Philosophy consists mostly of kicking up a lot of dust and then complaining that you can't see anything.
Gottfried Leibniz
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Men act like brutes in so far as the sequences of their perceptions arise through the principle of memory only, like those empirical physicians who have mere practice without theory.
Gottfried Leibniz