The rule of the wild is survival of the fittest.

The past does not have to define the future.

体操是我做的事，而不是我是谁。

Patience is key in observational astronomy—some discoveries take decades to confirm.

如果道歉夹带了借口，那就算不上是道歉。如果称赞夹带了要求，那就算不上是称赞。