Each smallest act of kindness, reverberates across great distances and spans of time --affecting lives unknown to the one who’s generous spirit, was the source of this good echo. Because kindness is passed on and grows each time it’s passed until a simple courtesy becomes an act of selfless courage, years later, and far away. Likewise, each small meanness, each expression of hatred, each act of evil.
Dean Koontz, From the Corner of His Eye
butterfly-effect, kindness