Explain the different meanings of sentences

What my father told my brother is that my brother only pays attention to style but not to taste, which means that he pays attention to the surface and ignores the essence, which is flashy.

What my father said to my sister is that my sister does not pursue superficial glitz, but stresses the essence of things.

These are two diametrically opposed views on life and values. Dad should mean that people should pay attention to the essence and not be confused by superficial glitz and ignore their own pursuit.