in life, be a shark. no. not a mean, conniving, selfish monster. be a shark… sharks can only swim/”walk” forwards, not backwards. their gills inhibit them from being able to swim backwards. that’s why you never see a shark swimming backwards. in fact, if a small shark starts coming towards you in attack-mode, you can push down and back on their nose… that will fill their gills and choke them with water. so: in life, be a shark. always walk forwards, never back.