One must apply oneself to the present and keep one's eyes firmly fixed on one's future goals.

人们必须让自己立足于现在，把眼光坚定地锁定未来目标。

《柯林斯英汉双解大词典》

Let it be one of the chief lessons of experience to keep hope alive without entirely satisfying it, by preserving it to make oneself always needed even by a patron on the throne.

努力保持人们对你的需求之心，并且不让其需求得到完全满足，这是经验给人们最重要的启示之一。此法让你变得必不可缺，甚至连君主也永远需要你。

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Pure religion undefiled before our God and father is this, to visit the fatherless and widows in their affliction, and to keep oneself unspotted from the world.

在父上帝眼中，那纯洁没有缺点的虔诚便是：照顾在苦难中的孤儿寡妇和保守自己不受世界的腐化。

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The best way to harness a future French stock market rise and keep oneself active in other markets is through international mutual funds with heavy French weightings.

FORBES: Vive la Difference

Whether it is a pedigreed oil painting of the family (in the best of cases, a Sargent) or a plucky image of oneself (perhaps a Warhol, but probably not a Freud), people love to keep representations of their relatives near at hand.

WSJ: Family Photos: Hide or Show?