And we should forget, day by day, what we have done; this is true non-attachment. And we should do something new. To do something new, of course we must know our past, and this is alright. But we should not keep holding onto anything we have done; we should only reflect on it. And we must have some idea of what we should do in the future. But the future is the future, the past is the past; now we should work on something new.
— Shunryu Suzuki