Young Justice2010

Miss Martian:
And though all seems lost, the one thing the aliens cannot destroy is hope.

Superboy:
Hope survives because the battle is not over. Not as long as even *one* of us is willing to fight.

Kid Flash:
It doesn't matter how many fall. For new heroes, will always rise to carry on: bringing on their resources, their skills, their talents to bear to defeat the enemy.

Robin:
The people of Earth will survive this. We will rebuild, and we will thrive. Never doubt and never forget, the Earth will never surrender!