That simple thought is almost all you need to know about relativity.

I spent something like an hour trying to form that one simple thought.

I couldn't form that one simple thought or any thoughts.

I reached for that one simple thought and caught it on the first bounce.

A very simple thought comes to me, like an angel entering the room.

It leads to a simple thought: Look at that cabbage.

She didn't seem to be able to hold a simple thought in her head for more than about ten seconds.

I hope, even so, that he will be able to read these simple thoughts in the minutes.

A simple thought has many times crossed my mind: the means is the message.

And as the rage left her, a simple thought began to form: What if it wasn't true?