...of Warren Buffett's $63 billion net worth, $62.7 billion was added after his 50th birthday, and $60 billion came after his 60th.
Also, from the same piece:
The single best stock to own of the last 50 years was cigarette giant Altria. Its stock compounded at an average of nearly 20% a year for half a
century – enough to turn $1,000 into more than $8 million.