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I hold that the mark of a genuine idea is that its possibility can be proved, either a priori by conceiving its cause or reason, or a posteriori when experience teaches us that it is in fact in nature.

Gottfried Wilhelm Leibniz

Indeed in general I hold that there is nothing truer than happiness, and nothing happier and sweeter than truth.
GOTTFRIED WILHELM LEIBNIZ

Happiness Hold Myself Sweet True Truth
Nothing is accomplished all at once, and it is one of my great maxims, and one of the most completely verified, that Nature makes no leaps: a maxim which I have called the law of continuity.
GOTTFRIED WILHELM LEIBNIZ

Accomplishment Greatness Law Myself Nature
Imaginary numbers are a fine and wonderful refuge of the divine spirit almost an amphibian between being and non-being.
GOTTFRIED WILHELM LEIBNIZ

Divine Imagination Number Spirit Wonderful
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 WILHELM LEIBNIZ

Art Discover Greatness Road Short True
I have said more than once, that I hold space to be something purely relative, as time; an order of coexistences, as time is an order of successions.
GOTTFRIED WILHELM LEIBNIZ

Existence Hold Myself Order Space Time
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 WILHELM LEIBNIZ

Greatness Ground Judgement Ourselves Principle Reason
Although the whole of this life were said to be nothing but a dream and the physical world nothing but a phantasm, I should call this dream or phantasm real enough, if, using reason well, we were never deceived by it.
GOTTFRIED WILHELM LEIBNIZ

Dreams Enough Life Myself Reality
I am so in favor of the actual infinite that instead of admitting that Nature abhors it, as is commonly said, I hold that Nature makes frequent use of it everywhere, in order to show more effectively the perfections of its Author.
GOTTFRIED WILHELM LEIBNIZ

Author Hold Myself Nature Perfection
The most perfect society is that whose purpose is the universal and supreme happiness.
GOTTFRIED WILHELM LEIBNIZ

Happiness Perfection Purpose Society Universe
Each portion of matter may be conceived of as a garden full of plants, and as a pond full of fishes. But each branch of the plant, each member of the animal, each drop of its humors, is also such a garden or such a pond.
GOTTFRIED WILHELM LEIBNIZ

Animal Garden Philosophy Plant
Why is there anything at all rather than nothing whatsoever?
GOTTFRIED WILHELM LEIBNIZ

Philosophy Question
I hold that the mark of a genuine idea is that its possibility can be proved, either a priori by conceiving its cause or reason, or a posteriori when experience teaches us that it is in fact in nature.
GOTTFRIED WILHELM LEIBNIZ

Genuine Hold Mark Myself Nature Possible Reason
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 WILHELM LEIBNIZ

Animal Appearance Chaos Confusion Creation Death Live Save Universe Wasted World
Make me the the master of education, and I will undertake to change the world.
GOTTFRIED WILHELM LEIBNIZ

Change Education Master Myself World
A distinction must be made between true and false ideas, and that too much rein must not be given to a man’s imagination under pretext of its being a clear and distinct intellection.
GOTTFRIED WILHELM LEIBNIZ

Clear Fake Ideas Imagination Intellectual Man True
Natural religion itself, seems to decay very much. Many will have human souls to be material: others make God himself a corporeal being.
GOTTFRIED WILHELM LEIBNIZ

God Human Material Natural Religion Soul