" And in exceptional cases we can make one ovary yield us over fifteen thousand adult individuals."

“在特殊的例外情况下我们可以用一个卵子培养出一万五千个成年人。”

What makes a belief true is a fact, and this fact does not (except in exceptional cases) in any way involve the mind of the person who has the belief.

使信念为真的是事实，而这个事实（除了特殊情况）不会以任何方式涉及拥有信念的人的思想。

But, in exceptional cases, beautiful lawns formed with great deliberation are overwhelmed and obliterated at once by the action of land-slips, earthquake avalanches, or extraordinary floods, just as lakes are.

但是，在特殊情况下，经过深思熟虑形成的美丽草坪会立即被山体滑坡、地震雪崩或特大洪水淹没和摧毁，就像湖泊一样。