Warren Buffett's 93rd birthday is today. Here's why the investing icon dreads his big day each year, and compares life to a snowball rolling down a hill.

• Warren Buffett celebrated his 93nd birthday on Wednesday, August 30.
• The investor dreads the yearly occasion, as he hates getting older and doesn't care about gifts.
• Buffett aims to compound his wealth and gather great friends, like a snowball rolling down a hill.

Warren Buffett, who turned 93 on Wednesday, dreads his birthday every year. Yet the legendary stockpicker and Berkshire Hathaway CEO knows there's no going back, so he focuses on making the absolute most of the time he has left.

The fabulously wealthy yet famously frugal investor enjoys the flood of birthday cards, gifts, and letters that descends on Berkshire's headquarters every year, but he's never ecstatic about the occasion.