expression
the more one knows, the more ...
Fixed expression used to show that as knowledge increases, a related quality or feeling also intensifies. Often followed by an adjective or verb in the comparative or superlative sense.
知れば知るほど、この問題の難しさがわかる。
The more you know, the more you understand the difficulty of this problem.
彼のことを知れば知るほど好きになる。
The more I get to know him, the more I like him.