莫过于

zuì měi hǎo de xìng fú mò guò yú cǐ

最美好的幸福莫过于此。

There's no greater happiness than this.

wǒ guó gǔ dài de wěi dà jiàn zhù mò guò yú wàn lǐ cháng chéng le

我国古代的伟大建筑，莫过于万里长城了。

Of all the ancient Chinese buildings, the Great Wall is perhaps the greatest.

zuì dà de kuài lè mò guò yú shì yè de chéng gōng

最大的快乐莫过于事业的成功。

There's no greater happiness than that of succeeding in one's career.