“Conflict is the gadfly of thought. It stirs us to observation and memory. It instigates invention. It shocks us out of sheep-like passivity, and sets us at noting and contriving…conflict is a sine qua non of reflection and ingenuity.”

“Self-realization and self-fulfilment are the sine qua non for human existence.”

“At this stage you must admit that whatever is seen to be sentient is nevertheless composed of atoms that are insentient. The phenomena open to our observation do not contradict this conclusion or conflict with it. Rather they lead us by the hand and compel us to believe that the animate is born, as I maintain, of the insentient”

“La inconciencia o no conciencia es la condición sine qua non para la felicidad.”

“Peace is not the absence of conflict but the presence of creative alternatives for responding to conflict -- alternatives to passive or aggressive responses, alternatives to violence.”

“Tyranny, like hell, is not easily conquered; yet we have this consolation with us, that the harder the conflict, the more glorious the triumph.”