admire vs sing the praises of

admire

verb
  • To estimate or value highly; to hold in high esteem. 

  • To look upon with an elevated feeling of pleasure, as something which calls out approbation, esteem, love or reverence. 

  • To regard with wonder and delight. 

  • To be enthusiastic about (doing something); to want or like (to do something). (Sometimes followed by to.) 

sing the praises of

verb
  • to commend someone's attributes to others 

How often have the words admire and sing the praises of occurred in a corpus of books? (source: Google Ngram Viewer )