It is worth noting that the notation facilitates discovery. This, in a most wonderful way, reduces the mind's labour.

A great doctor kills more people than a great general.

Take what you need, do what you should, you will get what you want.

God's relation to spirits is not like that of a craftsman to his work, but also like that of a prince to his subjects.

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.

The world is not a machine. Everything in it is force, life, thought.

To love is to find pleasure in the happiness of others.