There's a drive in me that won't allow me to do certain things that are easy.

There's a domino effect with certain things you say.

Certain things you have to stumble on to. They can't be preprogrammed.

There are certain things in ancient practices that are not worth adhering to.

There are certain things you don't discuss with Ansel, especially if you don't agree.

There is nothing on earth that could ever make me want to relive certain years of my life when I was young.