To the highly-esteemed Familie Wesendonck (Myrrha, Guido, Karl etc.) I don't want to leave it to Fortune whether you turn up this evening, but to ensure that good fortune by begging it of you. I am expecting Semper and Herwegh. Soearly, please ! R. W. Lazarus.
Richard Wagner
Source: Richard Wagner to Mathilde Wesendonck, translated by Ellis, No. 31