Ancient prose or poems expressing "Don't trust anyone easily" ~ ~

Human feelings are as thin as paper and things are as new as chess. -"Poet Jade Chip"

Human feelings are like waves, and the white head knows each other and still presses the sword. -Wang Wei's Drinking and Pei Di

Human feelings are reversed at dusk, and the flat land suddenly becomes a mountain stream. -Liu Ji's Fu Liangyin