“What is is what must be.”

The pleasure we obtain from music comes from counting, but counting unconsciously. Music is nothing but unconscious arithmetic.

We may say, that not only the soul (the mirror of an indestructible universe) is indestructible, but also the animal itself is, although its mechanism is frequently destroyed in parts.

Music is nothing but unconscious arithmetic.

God makes nothing without order, and everything that forms itself develops imperceptibly out of small parts.

Reality cannot be found except in One single source, because of the interconnection of all things with one another.

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.

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.

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.

Natural religion itself, seems to decay very much. Many will have human souls to be material: others make God himself a corporeal being.

It is unworthy of excellent men to lose hours like slaves in the labor of calculation which could be relegated to anyone else if machines were used.

The present is great with the future.

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.

It’s easier to be original and foolish than original and wise.

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.

There are also two kinds of truths: truth of reasoning and truths of fact.

..This is why the ultimate reason of things must lie in a necessary substance, in which the differentiation of the changes only exists eminently as in their source; and this is what we call God.

Even a soul submerged in sleep is hard at work and helps make something of the world.

The road up and the road down is one and the same.

No matter how thin you slice it, there will always be two sides.

My enemy is not the man who wrongs me, but the man who means to wrong me.

It is hard enough to remember my opinions, without also remembering my reasons for them!

Philosophy has no end in view save truth; faith looks for nothing but obedience and piety.

People ought to fight to keep their law as to defend the citys walls.

I really believe in the philosophy that you create your own universe. I’m just trying to create a good one for myself.