Solution to Yesterday’s Presidential Sudoku

Yesterday’s Presidential Sudoku puzzle asked you to spell out a U.S. President's quote, given this clue:

A President of the United States was born on this day, 7/4. He was 51 years old when he was inducted into office as the 30th President.

The answers:
“Four fifths of all our troubles in this life would disappear if we would only sit down and keep still.”
Calvin Coolidge

Thanks,
--Dave