Used to express enthusiastic support for the referent of that.

An action or occurrence must be very bad indeed if it brings no benefit to anyone.

And not. / Used to indicate that the following alternative is less preferred.

instead of; in preference to.

(Britain, idiomatic, informal) That is fair, good, or reasonable; one cannot hope for a better decision or outcome.

So that; used to indicate purpose

It is advantageous not to rely solely on being nice to others.

(idiomatic, simile) Superlative; wonderful.

(archaic) Because.

Alternative form of it's not the whistle that pulls the train