"The present is big with the future."

"He who does not act does not exist."

"There are never in nature two beings, which are precisely alike, and in which it is not possible to find some difference which is internal, or based on some intrinsic quality."

"I have said that the soul is a little world where distinct ideas represent God and confused ones represent the universe."

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