The cyclist, who won his record-breaking sixth Olympic gold medal in the velodrome this summer, wrote a column in The Daily Telegraph about the impact of the Games.
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"I am not a huge fan of reality TV, although it does seem to have become part of British culture," Hoy said.
"Real life is not about instant gratification or overnight fame. There are no guarantees in life and I can assure you that even the most talented athletes in the world, the ones who seem to make their events look easy, have dedicated thousands of hours to developing that natural talent."
He continued: "Without that hard work there can be no lasting reward. So I could not be more delighted that the efforts and talent of Team GB brought such joy and pride.
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"It was very special to feel the country come together for a magical few weeks, and in the months and years to come we should all try to remember exactly how we felt during London 2012."
Hoy said: "The greatest legacy of all is possibly not even sporting, but a shift in our mindsets.
"These are not easy times we are living through and for me the most powerful message from London 2012 is that anybody can achieve great things in their lives if they are willing to work hard, make sacrifices, and dedicate themselves to the dream they have."
Hoy recently denied reports that he was to become a guest X Factor mentor for this year's series, after he was linked with the show alongside fellow Olympians Jessica Ennis, Mo Farah and Bradley Wiggins.
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Wiggins has also brushed off the rumours, but Ennis has admitted to being a "massive fan".
Hoy's fellow cyclist Victoria Pendleton has admitted to being "interested" in joining Strictly Come Dancing now that she has retired from racing.
London 2012: Every Team GB gold medal - photo gallery:
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