„An open society is always in danger. It must constantly reaffirm its principles in order to survive.“

— George Soros
„The principle of the family was mutual aid; but the principle of society is competition, the struggle for existence, the elimination of the weak and the survival of the strong.“
— Will Durant
„We must reaffirm our commitment to nonviolence.“
— Jr.
„Repressive societies always seemed to understand the danger of "wrong" ideas.“
— Octavia E. Butler
„Justice must always question itself, just as society can exist only by means of the work it does on itself and on its institutions.“
— Michel Foucault
„For most of history, man has had to fight nature to survive; in this century he is beginning to realize that, in order to survive, he must protect it.“
— Jacques-Yves Cousteau