Look,— he said, —the point is there's no way to be a hundred percent sure about anyone or anything. So you're left with a choice. Either hope for the best, or just expect the worst."If you expect the worst, you're never disappointed," I pointed out.Yeah, but who lives like that?

To wish was to hope, and to hope was to expect

If you have never planted, then you cannot expect a great harvest

Where our own mind doesn't listen to us, how can other's minds follow what we say? One should not have such expectation at all.