So that Michelangelo might paint certain figures on the ceiling of the Sistine Chapel, so that Shakespeare might write certain speeches and Keats his poems, it seemed to me worthwhile that countless millions should have lived and suffered and died.
Are you quite certain about it?
She is certain to turn up.
These facts are certain.
I don't know for certain.
That she was there is certain.
I am not certain about that.
That's not absolutely certain.
I'm not certain where this ought to be put.
That she is dead is certain.
He certainly is smart.
Certainly. What can I do?
She is certain to be surprised.
It's certainly a thrill.
It was certain that he saw her there on a certain day.