"The instruction we have received, the example we have seen, the books we have read, the conversations we have had, all these make us what we are."

"The Holy Roman Empire is neither holy, nor Roman, nor an empire."

"What is tolerance? It is the prerogative of humanity. We are all full of weakness and errors; let us mutually pardon our follies."

"Common sense is not so common."

"All sects are different, because they come from men; morality is everywhere the same, because it comes from God."