為人：過去，現在，未來

“(1) I think about the future, therefore I am and can be a human being;
(2) The future is partly knowable for man: thinking back = thinking forward.”

– Fred Polak, Dutch Futurist

一、我思考未來，我因此為人，我因此可以為人；
二、未來有部分是人類可知的：回想過去＝思索將來

– F．波拉克，荷蘭未來學家