The thought did not exist, and never had.

That is to say: as those passengers' thoughts exist in my mind.

These two thoughts existed in separate compartments in my head for a long time.

Nature is transcendental, exists primarily, necessarily, ever works and advances, yet takes no thought for the morrow.

"All the cliches that one thought existed only in the pages of detective Fiction!"

If any such thoughts existed, they were erased Sunday night.

A year ago today, these thoughts did not exist even in the most remote crevice of their minds.

That one worked on the 'next phase' of evolution some thought must exist.

Only one thought existed beyond her meager space of life.

That's what thought is like here: long after we're gone, our thoughts will still exist here.