The use of "A man's got to know his limitations" has nothing to do with matriarchal  omnipresence in your St. Valentine's celebrational calculations.

AH! Yes – now I remember the curl of the lip! And all the time I thought it was what my old college rector, the Rev. Fr. Tiger Kelly, MSC., MA (Cantab), told me in an interview – later in life usurped by she who must be obeyed!

Dom