灯心

灯 = 丁 + 火 : Don Quixote (d) was going for a walk in front of the engine ((e)ng1) with his lantern (灯) when it suddenly catched fire (火). He used a lantern which utilizes hydrogen, and when he accidentally ripped his lantern open at a nail (丁) on the floor, the hydrogen caught fire.

心 = 乚 + 丶 : Marie Curie (xi) uses a shovel (乚) to dig a hole in front of the encampment ((e)n1). She wants to bury her heart (心). To the side are three petal leaves (丶), with which she wants to cover it afterwards.