Russian translation of "Your name is unknown, and your achievements will last forever"

This is the Tomb of the Unknown Soldier on the Red Square in Russia, which was built in memory of those who died in World War II. The long open flame in front of the tombstone spewed a blue flame, which was ignited on Victory Day in 1967 when it was built and has been burning ever since. There are two words engraved on the tombstone: "Your name is unknown, and your achievements will last forever." Russian is имятвоёнеизвестнопое.