pride comes before a fall

The phrase "pride comes before a fall" is an idiom that refers to the belief that excessive confidence or arrogance will often lead to a person's downfall or failure. It implies that when someone becomes overly proud or boastful, they may become blind to their weaknesses, make mistakes, or underestimate challenges, ultimately leading to a negative outcome. In essence, it suggests that one should avoid being too proud or complacent to prevent a subsequent setback.