Difference between: kelimeler and sözler?

As in this example sentence:

Kelimeler-sözler uçar gider, eylemler kalır.

Şimdiden teşekkür ederim

kelimeler: words

sözler: sayings

kelime: means part of sentence seperated by single space, in turkish.

söz: means complete sentence in turkish emphasizing the meaning.

cümle: means sentence emphasizing the grammatical structure.

Kelimeler / sözler uçar gider, eylemler kalır.

Words fly away, actions will remain.