Please note: This is a companion version & not the original book.Sample Book Insights: #1 Charles Darwin was a brilliant scientist who changed the way we view biology. However, he died considering his career a disappointment. He knew that by all worldly rights, he had everything to make him happy and content, but he was unable to cheer up.#2 The most obvious sign of decline is seen in athletes, who typically peak in performance between the ages of twenty and twenty-seven. For knowledge workers, who require ideas and intellect rather than athletic skill, no one expects to experience physical decline before their seventies.#3 The peak age for researchers is not old, but it is not young either. The pattern is the same for entrepreneurs, who typically earn vast fame and fortune in their twenties but are in creative decline by age thirty.#4 The peak of creative careers occurs at about twenty years after career inception, and people usually start declining somewhere between thirty-five and fifty. If you are a data analyst, you will, on average, hit your professional peak at age forty-four. If you are a poet, you will burn through half your life’s work by about age forty.