It can be thought of as the most difficult step to go through.

Being separated from my life's work is an extremely difficult step.

As has also been noted recently, he is at his best in the most difficult steps.

His focus went back to the task at hand, to the six most difficult steps of all.

It was perhaps the most difficult step she'd taken so far.

However, I will be frank that this is a difficult step for the forward.

We have to take the first most difficult step in one direction or another.

"Whatever they achieve must still be implemented, and that's always the difficult step."

For video games, this is a difficult step to reach.

The next, more difficult step will be to clean up the mess.