Knowledge is a comfortable and necessary retreat and shelter for us in an advanced age; and if we do not plant it when young, it will give us no shade when we grow old.

当我们长大以后知识是一个舒适的必须的保护庇护，如果在我们年轻的时候没有做好打算，老了的时候它就无法给我们提供荫庇。

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Knowledge is a comfortable and necessary retreat and shelter for us in an advanced age, and if we do not plant it while young, it will give us no shade when we grow old.

知识是人到老年时舒适而又必需的精神归宿。如果年轻时不种下知识之树，老年时就得不到树荫的遮蔽。

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