إِنْ أَحْسَنتُمْ أَحْسَنتُمْ لِأَنفُسِكُمْ ۖ وَإِنْ أَسَأْتُمْ فَلَهَا 

'If you act rightly, it is for your own good, but if you do wrong, it is to your own loss.'
Quran - [17:7]