这是古今中外许多严肃的艺术家孜孜以求的艺术境界。

This bourn is the one that many serious authors go in for.

建设一个更加美好的社会是人类孜孜以求的理想。

To build a better society is the ideal pursued by humanity assiduously.

这种异样的光彩，或者说深藏着的爱，正是导演所孜孜以求的。

That secretive light, or hidden love, was just what the director had been searching for.

笔法作为书法艺术的核心要素，可以说一直是历代书家孜孜以求、不断探究的重要问题。

As a key element in calligraphy, the technique of writing is an important problem studied continuously by many calligraphers in different times.

为了当你实现了上帝的意愿的时候将会得到他所承诺的东西，你必须孜孜以求。

You need to persevere so that when you have done the will of God, you will receive what he has promised.