There is nothing so sad in this universe as a lost child, I think.

It's sad, in this day and age, that such measures are still necessary.

It must be sad for you, in a way, to come back here and find everything so different.

"There's good reason to be sad once in a while," the friend says.

Her face was sad in a way he found confusing.

"It's sad in a way and you feel bad for them."

He chuckled again, but there was something sad in his voice.

The first three children were sad, happy and surprised in turn.

He smiled down at the boy but there was something sad in his eyes.

There was a trace of something sad also in that voice.