Morals and good character are in fact a particular state of the heart which find expression in the actions of the limbs and the organs.
The holy Prophet (SAWS) said, "Beware, in the body there is a piece of flesh; if it is sound, the whole body is sound, and if it is corrupt, the whole body is corrupt, and behold, it is the heart."[Al-Bukhari & Muslim]
The heart should be filled with the feeling of welfare for the creation of Allah and love for them, irrespective of what they are-friends or foes, believers or unbelievers.
One should remember the fact that every being on the earth is a creation of his Master, Allah. This originates a kind of love for all creatures in one's heart. This generates good actions and deeds, and then man does good to others.
As a consequence, the smile shining on ones face on account of this feeling will not be artificial, nor will it be displayed to attract public attention, it will rather spring up from the heart as a result of heart-felt longing and emotion.
Thus there is a world of difference between the morals taught by the Holy Prophet [sallallaahu alyhi wasallam] and the artificial and superficial show of morals in modern society.
-Mostly based on a speech by Mufti Taqi Usmani