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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 Wilhelm Leibniz

Every present state of a simple substance is the natural consequence of its preceding state, in such a way that its present is big with its future.
GOTTFRIED WILHELM LEIBNIZ

Future Present Simplicity State Way
I also readily admit that there are animals, taken in the ordinary sense, that are incomparably larger than those we know of, and I have sometimes said in jest that there might be a system like ours which is the pocketwatch of some enormous giant.
GOTTFRIED WILHELM LEIBNIZ

Animal Myself Ordinary System
Every mind has a horizon in respect to its present intellectual capacity but not in respect to its future intellectual capacity.
GOTTFRIED WILHELM LEIBNIZ

Capacity Intellectual Mindset Present Respect
Taking mathematics from the beginning of the world to the time when Newton lived, what he had done was much the better half.
GOTTFRIED WILHELM LEIBNIZ

Beginning Better Live Mathematics Time World
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
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 WILHELM LEIBNIZ

Greatness Knowledge Ourselves Quantity Record Wealth Writing
A great doctor kills more people than a great general.
GOTTFRIED WILHELM LEIBNIZ

Doctor General Greatness People
Make me the the master of education, and I will undertake to change the world.
GOTTFRIED WILHELM LEIBNIZ

Change Education Master Myself World
It’s easier to be original and foolish than original and wise.
GOTTFRIED WILHELM LEIBNIZ

Choice Easy Original Wisdom
All things in God are spontaneous.
GOTTFRIED WILHELM LEIBNIZ

God One Liner
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 WILHELM LEIBNIZ

Beginning Essence God Himself Knowledge Reason Science
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
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 WILHELM LEIBNIZ

Body Born Death Development Growth Separate Soul
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 WILHELM LEIBNIZ

Animal Clear Different Form Ideas Science Soul Yourself
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
Philosophy consists mostly of kicking up a lot of dust and then complaining that you can’t see anything.
GOTTFRIED WILHELM LEIBNIZ

Complain Philosophy See Yourself