have feet of clay
US /hæv fiːt əv kleɪ/
UK /hæv fiːt əv kleɪ/

1.
ter pés de barro, ter uma fraqueza oculta
to have a hidden flaw or weakness in one's character, despite outward appearances of strength or integrity
:
•
The public was shocked to learn that their revered leader, who seemed so perfect, actually had feet of clay.
O público ficou chocado ao saber que seu líder reverenciado, que parecia tão perfeito, na verdade tinha pés de barro.
•
Despite his impressive resume, it became clear that the new manager had feet of clay when he failed to handle the first major crisis.
Apesar de seu currículo impressionante, ficou claro que o novo gerente tinha pés de barro quando não conseguiu lidar com a primeira grande crise.