Do well and you will have no need for ancestors.

The biggest reward for a thing well done is to have done it

I think they will feel obligated to give back,

A liar will steal and a thief will kill

One thing is sure. We have to do something. We have to do the best we know how at the moment. If it doesn't turn out right, we can modify it as we go along.

When you reach the top, keep climbing.