"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."

"If you could blow the brain up to the size of a mill and walk about inside, you would not find consciousness."

"The words 'Here you can find perfect peace' can be written only over the gates of a cemetery."

"The monads are the true atoms of nature, and, in a word, the elements of things."

"I am so much for peace that I would rather be silent than say something which might disturb it."