Darkness and Light cannot exist at the same time and in the same place

1.Take time to introspect. The grief you cause to others will suffocate you after getting hardened to hatred. It will recoil on your own head with tenfold force. So avoid causing pain to others and be vigilant to not allow pain to yourself as well. Then you will attract the grace of God. You cannot be successful in your pursuit for Divinity if you contrive by tricks to cause harm to others, or revel in the misery of others, or concentrate only on your own happiness and progress, unmindful of the injury you cause to others. Dhanam (riches) and Daivam (Divinity) cannot be joint ideals. Darkness and Light cannot exist at the same time and in the same place.

Bagavan Sri Sri Sri Sathya Sai Baba