Friends:

The Inflexible Law of Nature: Action & Reaction!

The Blessed Buddha once said:
There are 4 things, Bhikkhus & Friends, nobody can change,
no recluse, priest, divine being, no god nor devil, nor anyone
in this or any other world. What are these 4 things?
That what is subject to decay may not decay...

That what is subject to sickness may not fall sick...

That what is subject to death may not die...

That those evil, immoral, impure, terrible, and pain-producing 
actions, which ever and again lead to rebirth, ageing, & death,

may not bring results, may not produce their inviolable fruit...

These four things, Bhikkhus & Friends, neither recluse, priest,
divine being, neither gods nor devils, nor anyone in this or any
other world can stop...

Source:
Anguttara Nikaya. Numerical Sayings: AN 4:182
http://What-Buddha-Said.net/Canon/Sutta/AN/Index.Numerical.htm