British Prime Minister David Cameron says he's proud of a law legalizing gay marriage in Britain and Wales.

In an op-ed published in the London Evening Standard a day after Queen Elizabeth II gave her royal stamp of approval to the legislation, Cameron said passage spoke volumes about the “the society that we are and the society that we want to live in – one which respects individuals regardless of their sexuality.”

(Related: Queen Elizabeth signs British gay marriage bill.)

“If a group is told again and again that they are less valuable, over time they may start to believe it,” wrote Cameron, leader of the Conservative Party. “In addition to the personal damage that this can cause, it inhibits the potential of a nation. For this reason too, I am pleased that we have had the courage to change.”

Cameron added that the fight for LGBT rights was not over: “There are subjects we must continue to tackle: not least taking a zero-tolerance approach to homophobic bullying, and caring for elderly members of the LGBT community.”

“As the sun shines this week on our country, the LGBT community now know that the unique bond of marriage is available to them. As Lord Alderdice put it when arguing for civil partnerships in 2004: 'One of the most fundamental rights of all is the right to have close, confiding, lasting, intimate relationships. Without them, no place, no money, no property, no ambition – nothing – amounts to any value. It seems to me a fundamental human right to be able to choose the person with whom you wish to spend your life and with whom you wish to have a real bond.'”

“I couldn't agree more. Yesterday was an historic day,” Cameron added.