Don't think about the past and think of the future think about now is not thinking of Shi went to returning someday do not tire yourself in thinking about the past
Do not think in the past thought in the future think of now do not think of something and went back because someday Do not bother to think about the past
Do not think about the past, think in the future, think now, don't think of anything goes and returns once, don't trouble yourself to think about in the past.