Men of age object too much, consult too long, adventure too little, repent too soon, and seldom drive business home to the full period, but content themselves with a mediocrity of success.

Born into poverty on a farm in Missouri he was the author of How to Win Friends and Influence People (1936) a massive bestseller that remains popular today. He also wrote How to Stop Worrying and Start Living (1948) Lincoln the Unknown (1932) and several other books.