All things appear and disappear because of the concurrence of causes and conditions. Nothing ever exists entirely alone; everything is in relation to everything else.
I'm convinced of this: Good done anywhere is good done everywhere. For a change, start by speaking to people rather than walking by them like they're stones that don't matter. As long as you're breathing, it's never too late to do some good.
The most merciful thing in the world, I think, is the inability of the human mind to correlate all its contents... some day the piecing together of dissociated knowledge will open up such terrifying vistas of reality, and of our frightful position therein, that we shall either go mad from the revelation or flee from the light into the peace and safety of a new Dark Age.