Yogi: Sila and wisdom are the same thing. We know the right thing to do only when there is wisdom. Sila is not bound by any 1 law like we don’t kill and we don’t steal; it’s just the right thing to do at that point. 

Sayadaw: Yes, wisdom is very important. Actually, sila is should or should not do. If it is something that you should do, you need to do and if you shouldn't, you don’t do, right? That is sila. 

But how do we know if we should or should not do? So, some understanding has to be present to make the right decision; otherwise, we’re just following instructions.