Perhaps the most difficult thing is shooting scenes set 6,000 feet up in the mountains of Mexico.

The most difficult thing to do is drama.

It is so tempting to try the most difficult thing possible.

I just think the most difficult thing to displace is privilege.

It's not only the most difficult thing to know one's self, but the most inconvenient.

It's not easy to walk out on a marriage and two young kids, and it's the most difficult thing I've ever had to do.