I became acquainted with Kant's philosophy; and now I must tell you of a thought in it, inasmuch as I cannot fear that it will upset you as profoundly and painfully as me. We cannot decide whether that which we call truth is really truth or whether it merely appears that way to us. If the latter is right, then the truth we gather here comes to nothing after our death; and every aspiration to acquire a possession which will follow us even into the grave is futile. If the point of this idea does not penetrate your heart, do not smile at another human being who feels wounded by it in his holiest depths. My only, my highest aim has sunk, and I have none left.


