This is a well known C.S. Lewis quote taken from "The Abolition Of Man" published in 1943. In this book Lewis exhibited incredible foresight into the root of the problems that would be plaguing coming generations. As a member of British academia he realized that the seeds that were being sewn there would soon go out into the world and produce fruit, one of which was the death of honor.
I personally always prefered the quote that immediately followed:
This was a favorite because I could understand it. It wasn't until I began to study Lewis that I realized the high view he held of the whole concept of honor, and worse yet, the extent to which it had died in our current culture. This death had, unbeknownst to me, rendered the first quote nearly meaningless. I had never seen anyone laugh at honor; or perhaps I'd not realized it when they did so.
To be sure, these people who think that the "law" and the "constitution" should be putty in their hands, do so with the best of intentions for helping the poor and the common folk. This brings us to one last worthy quote by C.S. Lewis :
"Of all tyrannies, a tyranny sincerely exercised for the good of its victims may be the most oppressive. It would be better to live under robber barons than under omnipotent moral busybodies. The robber baron's cruelty may sometimes sleep, his cupidity may at some point be satiated; but those who torment us for our own good will torment us without end for they do so with the approval of their own conscience."
"God in the Dock: Essays on Theology and Ethics"