强扭的瓜不甜

qiǎng niǔ de guā bù tiánqiangniudeguabutian

1. lit. if you have to use force to break a melon off the vine, it won't taste sweet (because it's only when the melon is ripe that it can be removed with just a slight twist) (idiom)
2. fig. if sth is not meant to be, it's no use trying to force it to happen

Study it in Yanamino