Appearance is easy to recognize, but heart is the hardest to guess.
Outside of the gold and jade, there are many failures.
Water radish skin red heart not red.
Icebergs are unreliable. Wearing jewelry can't hide ugliness.
The cake on the painting is beautiful, but it can't feed the hunger.
A bare head and a round head are not necessarily monks.
Man can't see his face. Evil looks are not necessarily insidious.
Paper flowers do not bear fruit, wax hearts do not see fire.
The surface of bamboo is a root, but the interior knots are incompatible.
Beauty is not above your head.