Don't wait to be lonely, to recognize the value of a friend.

不要等到寂寞了，才明白朋友的价值。

youdao

He was thirty-one now, not too old, but old enough to be lonely.

他现在31岁了，不太老，但已经感受到孤独了。

youdao

The only single people who claim to be lonely are those who choose to be lonely.

那些说自己感到孤独的光棍，只可能是那些自己选择孤独的人。

youdao

He said to himself, "This will be a lonely house now."

VOA: special.2009.03.07

Lincoln said to the old man: "When I think of the sacrifices of life still to be offered, and the hearts and homes to be made lonely before this terrible war is over, my heart is like lead.

VOA: special.2009.11.12

"We honor the women who traveled those lonely roads to be the first ones in those court rooms, to be the first ones in those board rooms, to be the first ones on those playing fields, and to be the first ones on those battlefields.

VOA: standard.2010.03.08

To be single must mean to be lonely but far lonelier are those who fear being alone.

BBC: Viewpoint: Why are couples so mean to single people?

But if you linger long enough to see the entourages pass and hear the trash talk subside, boxing reveals itself to be a lonely sport men left unaccompanied, armed only with their training and their determination to push forward.

WSJ: Jason Gay: On the Periphery of Boxing Madness; Freddie Roach, Manny Pacquaio; Floyd Mayweather Jr.

Say what you will about Raj Rajaratnam, but today had to be a lonely and frightening moment for the defiant billionaire.

FORBES: Rajaratnam Trial Begins -- The Judge, The Jury and Early Defense Win