Age old philosophy - do unto others.
And I see good will toward your fellow man not specifically because of religion or ones belief in some mystical deity.
I will always help if I can. Not because some book tells me to, or I fear the wrath of this mystical deity - just because it's the right thing to do, and if the roles were reversed, and I was the one in need, I would hope that I would be helped.
I don't believe in rainbow unicorns, nor do I believe in karma - I just believe in doing the right thing, as judged as whether I would like it in that particular situation.
If I'm ever offered recompense for an act of kindness, I just tell the person "Thank you, but if an act of kindness is paid for, it no longer is an act of kindness (or whatever) it becomes paid work.
My thought is the next time that person sees someone in need of help, they might remember my helping them and be a little more forthcoming with whatever assistance they could provide.
Having said that, I am well aware of the way the world is, so understand why someone may not feel comfortable helping in a lot of situations. (my wife stopping for a car broken down on a deserted road, for example)
As for people asking for money for food or petrol. I would prefer to buy the person a meal, or fill their tank than giving them money.
I'm fully aware I'll be damned to an eternity of firey torment because of my non-religious views, but cest la vie.
I live my life by a code, and don't need a contrived book of fiction to illustrate to me the right way to live my life.
Cheers,
Rick
P.S. To those interested, the church, which favours poverty and humility and asks you to tithe your hardearned is by many orders of magnitude, the weathiest organization in the world.