Letter From Bradbury to Heinlein

A friend sent me this letter and I had to share it as an example of Heinlein's influence. The letter reads:

Dear Bob:

Your influence on us all, from 1939 on, cannot be measured. I can only say I remember, warmly, your many kindnesses to me when I was 19-20-21 years old. That young man basked in your light and will continue to be grateful for the help you offered when I was so poor and needful!

Yours in that memory,
~Ray Bradbury