I do not conceive of any reality at all as without genuine unity.

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

The dot was introduced as a symbol for multiplication by Leibniz. On July 29, 1698, he wrote in a letter to Johann Bernoulli: "I do not like X as a symbol for multiplication, as it is easily confounded with x.

Every substance is as a world apart, independent of everything else except God.

These principles have given me a way of explaining naturally the union or rather the mutual agreement [conformité] of the soul and the organic body. The soul follows its own laws, and the body likewise follows its own laws; and they agree with each other in virtue of the pre-established harmony between all substances, since they are all representations of one and the same universe.

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.

I hold that it is only when we can prove everything we assert that we understand perfectly the thing under consideration.