“I was an optimist, a great champion of the human spirit. And I lost that for a time. I feel like I've regained a bit of that in the last few years but there was a period of my life in which I had a very low opinion of people in general.”
“Indeed every monad must be different from every other. For 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.”