“The economy of early hominids and that of twenty-first century society have enormous differences, but they do share one important feature: in both of these economies, humans accumulate information ...”

“once sailed neither the ship nor the shore ever remains the same again.”

“We are not trapped or locked up in these bones. No, no. We are free to change. And love changes us. And if we can love one another, we can break open the sky.”

“One day spent with someone you love can change everything.”

“God can use the jawbone of an ass!”

“Honest, open communication is the only street that leads us into the real world... We then begin to grow as never before. And once we are on this road, happiness cannot be far away.”

“I am constantly trying to communicate something incommunicable, to explain something inexplicable, to tell about something I only feel in my bones and which can only be experienced in those bones. ...”

“Let us not forget that revolutions are accomplished through people, although they be nameless. Materialism does not ignore the feeling, thinking, and acting man, but explains him.”

“According to the materialist conception of history, the ultimately determining element in history is the production and reproduction of real life.”

“In truth, it is no more clear in our time than it was in Marx's how socialism will come about in either developed or undeveloped countries; what is clear is that for humanity to have a decent futur...”