The thoughts that come often unsought, and, as it were, drop into the mind, are commonly the most valuable of any we have.

The thoughts that come often unsought, and, as it were, drop into the mind, are commonly the most valuable of any we have.

那些不经意间出现在我们头脑中的想法，可以说是我们所有的思想中最有价值的。

-- John Locke 约翰·洛克