“If we use the past only to creature heroes for present purposes, we will never understand the richness of human thought or the plurality of ways of knowing.”

“We have to do with the past only as we can make it useful to the present and the future.”

“For the past is passed and will never return, the future we know not, and only the present can be called our own.”

“It was never too late to learn something. The past is unalterable in any event. The future is the only thing we can change. Learning the lessons of the past is the only way to shape the present and the future.”

“Let each of us examine his thoughts; he will find them wholly concerned with the past or the future. We almost never think of the present, and if we do think of it, it is only to see what light is throws on our plans for the future. The present is never our end. The past and the present are our means, the future alone our end. Thus we never actually live, but hope to live, and since we are always planning how to be happy, it is inevitable that we should never be so.”

“In the past, humans hesitated when they took lives, even non-human lives. But society had changed, and they no longer felt that way. As humans grew stronger, I think that we became quite arrogant, losing the sorrow of 'we have no other choice.' I think that in the essence of human civilization, we have the desire to become rich without limit, by taking the lives of other creatures.”