Four men alone knew the whole secret of what he did.

Any child who studies at the television for five hours a day knows the true secret of success.

To know his secret, you have to see him move.

He had come around often enough to know our dark secret.

And he said: You would know the secret of death.

He must have glass, and only one country in the world knew the secret of its making.

"Never again will you get the opportunity to question another of my kind who knows the secret."

I believe she did know the secret, or part of it, in her real life.

The few men who know the secret are beyond our reach.

We really come here to meet men - now you know my secret.