The best books haven't been written.

The best race hasn't been run.

The best score hasn't been made yet.

The best song hasn't been played yet.

The best tune hasn't been played yet.

Cheer up, for the world is young.

最好的书尚未被写出。

最好的比赛尚未进行。

最好的比分尚未产生。

最好的歌尚未被唱出。

最好的曲调尚未被奏响。

振作起来，这世界还年轻。