“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.”

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.

He who understands Archimedes and Apollonius will admire less the achievements of the foremost men of later times.

Music is the pleasure the human mind experiences from counting without being aware that it is counting.

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.

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.

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.

Nothing is more important than to see the sources of invention which are, in my opinion more interesting than the inventions themselves.

Justice is charity in accordance with wisdom.

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.

To love is to be delighted by the happiness of someone, or to experience pleasure upon the happiness of another. I define this as true love.

Either there are no corporeal substances, and bodies are merely phenomena which are true or consistent with each other, such as a rainbow or a perfectly coherent dream, or there is in all corporeal substances something analogous to the soul.

Now this connection or adaption of all created things with each, and of each with all the rest, means that each simple substance has relations which express all the others, and that consequently it is a perpetual living mirror of the universe.

The most perfect society is that whose purpose is the universal and supreme happiness.

He who hasn’t tasted bitter things hasn’t earned sweet things.

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.

Philosophy consists mostly of kicking up a lot of dust and then complaining that you can’t see anything.

Wealth gained by dishonesty will be diminished, but he who gathers by labor will increase.

Short term volatility is greatest at turning points and diminishes as a trend becomes established.

Joy increases as you give it, and diminishes as you try to keep it for yourself.

God loves us beyond comprehension, and we cannot diminish God’s love for us.

The global environment crisis is, as we say in Tennessee, real as rain, and I cannot stand the thought of leaving my children with a degraded earth and a diminished future.

Any man’s death diminishes me, because I am involved in Mankind; And therefore never send to know for whom the bell tolls; it tolls for thee.

He is living on a diminishing hope that good things await him in the future. A hope that promises a sense of contentment even though the scars from the past might never fade away.

Create all the happiness you are able to create; remove all the misery you are able to remove. Every day will allow you, – will invite you to add something to the pleasure of others, – or to diminish something of their pains.