Dr Karl’s tips for how to broaden your knowledge
1 Regularly ask questions. The old saying goes, “Ask a question, be a fool for a second. Don’t ask a question, be a fool forever.” 2 Always keep a healthy mind in a healthy body. Eat well, exercise and get lots of sleep. 3 Obey the call of nature, as holding it is literally unhealthy. Free tip: in public buildings, the toilets are usually located near the elevators.