How many of us forget when the sun goes down that it will rise again!

Thick is the darkness—
Sunward, O, sunward!
Rough is the highway—
Onward, still onward!

Dawn harbors surely
East of the shadows.
Facing us somewhere
Spread the sweet meadows.

Upward and forward!
Time will restore us:
Light is above us,
Rest is before us.

William Ernest Henley.