生なま酔よい本ほん性しょう違たがわず

Meanings

1

in wine there is truth; drunken words are sober thoughts

A proverb meaning that a person's true nature is revealed when they are drunk; alcohol does not change one's fundamental character.

彼かれは酔ようと急きゅうに優やさしくなる。生なま酔よい本ほん性しょう違たがわずだね。
He suddenly becomes kind when he's drunk. It's true that in wine there is truth.
生なま酔よい本ほん性しょう違たがわずというから、あの人ひとの本ほん音ねはああなんだろう。
As they say, drunken words are sober thoughts, so that must be what he really thinks.