Proverbs 18:11 in the World English Bible
The rich man’s wealth is his strong city, like an unscalable wall in his own imagination.
Context
10 The name of the LORD is a strong tower: the righteous runneth into it, and is safe.
11 The rich man’s wealth is his strong city, and as an high wall in his own conceit.
12 Before destruction the heart of man is haughty, and before honour is humility.