“We cannot change the history of the past.”

“Even God cannot change the past.”

“But the past cannot be changed, and we carry our choices with us, forward, into the unknown. We can only move on.”

“We cannot change the past to rewrite a better beginning - But we can work for the future and strive for a better ending.”

“The past is the past. You cannot change it, but you can learn from it.”

“You are all caught in the current of history whose headwaters rise in the dark mountains of the past. You cannot change it; you survive and help others to survive by adapting to it.”

“In our society, we don not study history to understand the process of change but just to entertain ourselves with past events. For this reason, history is not regarded as a useful subject. The history that we teach in our educational institutions is political history and, as such, it is used by the ruling classes.”

“… the three things I cannot change are the past, the truth, and you.”

“After all, the wrong is done. It is past and cannot be changed. We have only the present and the future upon which to move forward.”

“The third dimension of three-dimensional economics, change, suggests that studying economics also means studying history. The process of change in society cannot be understood without considering the past and how it changed, eventually becoming the present. Change in political economy may be contrasted with the static approach of conventional economics that freezes time at a moment.”