Dhaka, May 11 -- Bill Gates has declared that he does not intend to die rich, as he plans to give away 99 per cent of his vast fortune over the next 20 years-an ambitious philanthropic commitment aimed at solving some of the world's most pressing challenges.

In a deeply personal blog post marking the 25th anniversary of the Bill & Melinda Gates Foundation, the Microsoft co-founder laid out his vision for the next two decades.

The foundation, which has already donated more than $100 billion since its inception in 2000, will now spend the bulk of Gates' remaining wealth before permanently closing its doors on 31 December 2045.

"I have spent a lot of time thinking about [Andrew Carnegie's] quote lately," Gates wrote, referring to the fame...