I have harnessed the shadows that stride from world to world to sow death and madness.

Science, already oppressive with its shocking revelations, will perhaps be the ultimate exterminator of our human species - if separate species we be - for its reserve of unguessed horrors could never be borne by mortal brains if loossed upon the world.

To the scientist there is the joy in pursuing truth which nearly counteracts the depressing revelations of truth.

There are black zones of shadow close to our daily paths, and now and then some evil soul breaks a passage through. When that happens, the man who knows must strike before reckoning the consequences.

I have seen the dark universe yawning Where the black planets roll without aim, Where they roll in their horror unheeded, Without knowledge, or lustre, or name.

I could not help feeling that they were evil things -- mountains of madness whose farther slopes looked out over some accursed ultimate abyss.

I'll tell you something of the forbidden horrors she led me into - something of the age-old horrors that even now are festering in out-of-the-way corners with a few monstrous priests to keep them alive. Some people know things about the universe that nobody ought to know, and can do things that nobody ought to be able to do.