A friend is easy to make but A true friend is hard to make.
Friend is uncountable but True friend is uncountable.
Friend understand you slightly but True friend understand you well.
Friend is by your side but True friend is always by your side.
Friend is concern about you but True friend is concern you with the heart 100%.
Friend might betray you but True friend never betray you.
Friend walk in and out in your life but True friend always stay in your life.