How many people ever learned truth in a single lifetime?

You cannot return to any one Realm after living a single lifetime there.

Individuals almost never experience genetic change in their own single lifetime.

But how much should a man be required to accomplish in a single lifetime?

"And what if you've caused more pain than you could feel yourself in a single lifetime?"

You can explore the entire Universe in a single lifetime.

All of them, or at least as many as he could in a single lifetime.

Those eyes had seen all of man's dirty soul in a single lifetime.

"You see the world so simply, you who have lived but a single lifetime."

Books bring knowledge one could never gather in a single lifetime.