“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.”

American writer and teacher

Dale Carnegie was an American writer and teacher, born in 1888 and died in 1955. He became known for courses in self-improvement, salesmanship, corporate training, public speaking, and interpersonal skills. He was born into poverty on a farm in Missouri and built a career around practical advice for personal and professional life. He is best known for How to Win Friends and Influence People, published in 1936, which became a bestseller and remains widely read. He also wrote How to Stop Worrying and Start Living in 1948, Lincoln the Unknown in 1932, and several other books.