"To be good and to be bad, these are not things, but only words."

"The changes in our life must come from the impossibility to live otherwise than according to the demands of our conscience."

"It is not the quantity but the quality of knowledge that matters."

"The higher the man, the more he is dependent on other people, and the less free he is."

"All governments are in their essence a more or less disguised conspiracy against the people, for the purpose of extorting money from them."