What are the most important lessons in life? In The 40 Book: Forty Things You Should Know By Forty, author David B. McLaughlin provides his opinions on those lessons with chapters like: Truth exists independently of belief; Being a good parent is the hardest job in the world; Identifying and pursuing your purpose brings fulfillment to your life; Crystal clear communication is essential to success; Income producing assets and compound interest are the keys to building wealth; and 35 more! David B. McLaughlin is a corporate trainer, accountant, and ordained minister. He entered the corporate world after spending 15 years in full-time ministry. He is the president of Voyage Ministries, Inc. and the author of Voyage Through The Bible, Basic Training, and The Life of Christ. He is also the host of Voyage Radio.