If the others died, he might never learn their secret.

"They will be able to learn his secret for themselves!"

But it wasn't until later that I learned her secret.

It was time to learn the secret of this place.

But she was right: her father and his parents had died to make certain that no one learned the secret.

Thus, you have learned the secret of the new direction.

In the old times they knew a lot we don't, though I've spent a good part of my life trying to learn their secrets.

You could have learned all the secrets of the city in a single night.

How a group of women learned the secret to a secure financial future.

From him, they would learn the secret of the earthquake power.