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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
Understand
Everything
Thing
Assert
Consideration
Perfectly
Prove
Hold

More quotes by Gottfried Leibniz

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I am convinced that the unwritten knowledge scattered among men of different callings surpasses in quantity and in importance anything we find in books, and that the greater part of our wealth has yet to be recorded.
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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If you have a clear idea of a soul, you will have a clear idea of a form for it is of the same genus, though a different species.
Gottfried Leibniz
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There is a world of created beings - living things, animals, entelechies, and souls - in the least part of matter.... Thus there is nothing waste, nothing sterile, nothing dead in the universe no chaos, no confusions, save in appearance.
Gottfried Leibniz
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In symbols one observes an advantage in discovery which is greatest when they express the exact nature of a thing briefly and, as it were, picture it then indeed the labor of thought is wonderfully diminished.
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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A great doctor kills more people than a great general.
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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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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There never is absolute birth nor complete death, in the strict sense, consisting in the separation of the soul from the body. What we call births are developments and growths, while what we call deaths are envelopments and diminutions.
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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Reality cannot be found except in One single source, because of the interconnection of all things with one another. I maintain also that substances, whether material or immaterial, cannot be conceived in their bare essence without any activity, activity being of the essence of substance in general.
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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Natural religion itself, seems to decay very much. Many will have human souls to be material: others make God himself a corporeal being.
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
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All things in God are spontaneous.
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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It is God who is the ultimate reason things, and the Knowledge of God is no less the beginning of science than his essence and will are the beginning of things.
Gottfried Leibniz
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The past is pregnant with the present.
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