We shouldn't forget anything.

TIME.com: Thailand Leader's Surprising Exit

“We have no time to quarrel,”
“I want to see Thai people unite and forget what has happened.”
— Prime Minister Thaksin Shinawatra

Yep, we have no time to quarrel (but if it necessary, we would have to).
Yep, we should unite. Definitely agree.
But, nope, we shouldn't forget anything that has happened — if we do, all that will be a real waste of time (do we have time to waste that much?).