The law of conservation

Goodness can neither be created nor destroyed.
Be good, it will come back in a way or other.

selfish

All are selfish.  

Incrementally selfish starting form the farthest metaphoric thing known, to self.

I, my, my family, my friends, my town, my state, my country, my continent, my world, my universe.

And the expression of selfishness is contextual.   

Growth

Growth is inevitable.
Growing along with it is optional.

H=1/abs(SLO-SLI)

Happiness is inversely proportional to the difference between the satisfaction level of what you do to live and what you love to do.

Formula: h =1/abs(SLO-SLI)

If SLO= SLI OR SLI = SLO.

Then, h = ∞. (Infinite).

Hence proved.

You are infinitely happy if

What you do to live is what you love to do

Or

What you love to do is what you do to live.

God

Hypothetically, if there was internet during the time god was invented or created.
Possibility was every religion’s base, that one god for the entire universe would have actually been true.