expression, godan verb (-ru)
cream rises to the top; true worth is revealed under scrutiny
Proverb meaning that talent or quality becomes apparent when tested or examined, just as gems are distinguished by light. Often used to encourage patience or to assert that genuine ability will eventually be recognized.
They say cream rises to the top, so even if I'm not appreciated now, I'll keep working hard without rushing.
彼の実力はまだ知られていないが、瑠璃も玻璃も照らせば分かる。
His ability is still unknown, but true worth will be revealed under scrutiny.