“There are two days about which nobody should ever worry and these are yesterday and tomorrow.”

“There are two days in the week about which and upon which I never worry. ... One of these days is Yesterday ... And the other day I do not worry about is Tomorrow.”

“When we are tired, we are attacked by ideas we conquered long ago.”

“There is no future without a past, because what is to be cannot be imagined except as a form of repetition.”

“In the end, your past is not my past and your truth is not my truth and your solution - is not my solution.”