There are certain things women are better at than men.

Well, guys are better at mechanical stuff and women are better at emotional stuff.

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 a certain element of complementarity between men and women that is biological by nature.