The Messenger of Allah, sal Allahu alayhi wa sallam, said,
"Allah has commanded that everything (one does) they should do it with excellence (ihsan). When you sacrifice, sacrifice well. Sharpen your knife and make it easy for the animal to be slaughtered." - Muslim

[Lessons from this hadith] Don't just aim to be 'good', be outstanding! This is what is required of a Muslim, in everything they do!