Sacredness of Life
Allah (سبحانه و تعالى) has made all life sacred and Islam does not differentiate in this regards between the life of a Muslim or non-Muslim, a black person and white person, or a pious and non pious person, or a man and a woman. To the point that a baby in the womb of a woman is not allowed to be harmed by anyone , even if that baby was the result of a adultery, it is not permissible for anyone to unjustly abort that baby as it has a life which Allah (سبحانه و تعالى) has made sacred. And we find in the Messenger (صلى الله عليه و سلم) warning us with a very harsh and sever warning for anyone who kills another unjustly.
"… Whoever kills a soul unless for a soul or for corruption [done] in the land – it is as if he had slain the whole of mankind.’ [Quran: Surah al-Maida 5: Ayah 32]
“So whosoever does good equal to the weight of an atom (or a small ant) shall see it. So whosoever does evil equal to the weight of an atom (or a small ant) shall see it.” [Quran: Surah Az-Zalzalah 99: Ayah 7-8]
Islam places such importance to the sacredness of life that this includes the lives of animals. It is mentioned in a hadeeth that Ibn Umar (رضي الله عنه) narrated that the Prophet (صلى الله عليه و سلم) said: "A woman entered the Hellfire because of a kitten that she had tied up, and then she did not feed it nor allowed it to eat from what is on earth." (Agreed upon).
Islam does not stop at only protecting a person while he is alive but also after he dies. Muslims are ordered to wash and clothe and bury the dead. And show them the utmost respect in general. And the Messenger (صلى الله عليه و سلم) said in a hadith in relation to showing respect to the dead: “Recall the good qualities of your dead, and refrain from mentioning their shortcomings” [At-Tirmidhi]