Err

To err is human, to forgive divine.

We are liable to err.

After all, even the gods may err at times.

To err is human.

It's easy to err once you lose your cool.

It's better to err on the side of caution.

To err is human. To blame someone else for your mistakes is even more human.

Err...

The heavens do not err.

Better to err on the side of caution.

He erred in his calculations, and made many mistakes.

Artificial tests, then, can hardly err on the side of supplying too many opportunities for one bird to see another perform the act which is the model.

To err is human, to forgive, divine.

Err... what did you just say?