Meanings of commonplace thoughts in English

It dealt in no commonplaces , for he had no commonplace thoughts.

He has the knack of finding very exaggerated phrases by which to express commonplace thoughts.

And do not think that pause can transmute commonplace thoughts into great and dignified utterance.

But all these, of course, are commonplace thoughts, just what would occur to anybody else, and really not worth repeating.

The poetry of those old deserted quarters came suddenly home to me-allthe little commonplace thoughts; all the commonplace associations of Georgian London.

'Because I utter commonplace words, you must not suppose I think only commonplace thoughts.