Ah! yes, I know: those who see me rarely trust my word: I must look too intelligent to keep it. - Jean-Paul Sartre

But [your crime] will be there, one hundred times denied, always there, dragging itself behind you. Then you will finally know that you have committed your life with one throw of the die, once and for all, and there is nothing you can do but tug our crime along until your death. Such is the law, just and unjust, of repentance. Then we will see what will become of your young pride.

My existence began to worry me seriously. Was I not a simple spectre?

The For-itself, in fact, is nothing but the pure nihilation of the In-itself; it is like a hole of being at the heart of Being.