To reason with a fool is a difficult undertaking.
It is difficult to change a persons mentality.
Nothing is difficult to a willing mind.
Go to a man who is in difficulty and you’ll get a bargain.
It’s difficult to trust a woman.
In a game it’s difficult to know when to stop.
It is the first step that is difficult.
The door of good works is difficult to open—but when opened, it is difficult to close.
The great way is not difficult for those who have no preferences.
You can easily find a thousand teachers, but it is difficult to find a true disciple.
The most difficult part of an action is the beginning.
The tongue is a wild beast; once let it loose, it is difficult to chain.
Love is sometimes difficult, but death even more so.
Whatever is good to know is difficult to learn.
All things appear difficult at first.