Success often depends on one's temperament.

The secret of success is not to think of failure.

We hold out no expectation of success.

I have no sexual desire.

You were exceeding the speed limit, weren't you?

Public opinion plays a vital in the political realm.

Don't kid yourself.

Will you screen me from public censure?

What do you think we should do to make for world peace?

The world is confronted with the problem of environmental pollution.