Even if there is no concrete benefit paid in response to your gooddeed, at the very least, the doer of the gooddeed has the opportunity to enjoy a kind of spiritually enlightened moment.
即使你的善行没有带来任何具体的回报，至少行善的人有机会享受一种精神上的启迪。
2
My grandmother says a gooddeed is its own reward.
我的奶奶说，做好事本身就是一种回报。
3
I think what Aesop was suggesting is that when you offer a good turn to another human being, one can hope that that gooddeed will come back and sort of pay a profit to you, the doer of the gooddeed.