Sentence examples for this is a difficult lesson from inspiring English sources

What remains?" This is a difficult lesson.

In fact, there have been some excellent writeups that locking down is actually antithetical to safety, but this is a difficult lesson to learn.

My former boss at Columbia, John Mitchell, once commented to me about "good television" by saying "good for whom?" This was a difficult lesson for me to learn.

As a former ladder-climbing people pleaser, this was a difficult lesson to learn, but now, after someone shows me more than once who they are by disrespecting my time and feelings, I don't go back for more.

One line from his poem covers all bases: "Freedom is a difficult lesson to learn".

This can be a difficult lesson to learn.

It's a difficult lesson that perhaps I wish I'd learned sooner, but then, without angst as my companion all this time I never would have written Drop.

He added that "security services are continuing to take measures internally and externally through cooperation with Interpol and several other Arab and foreign security services" and that the theft of the van Gogh had been a "difficult lesson".