Most people don't know their origin or take the time to think about it.
His parents asked not to spend money until it know its origin.
Perhaps it was better she did not know the origin of that.
Now he knew the origin of the clothes, in any case.
Until this day I, myself, did not know my origins.
Although it has spread on the internet, I do not know its origin.
The point, the office said, is whether viewers know the origin.
We never knew the origin of the break: it was something left in silence.
Despite its popularity, few people seem to know the origin of the term.
While this preference is interesting, we do not know its origin.