I can't sell myself into slavery any more than I can take somebody else's life or take someone else as a slave by force.

不能将自己变卖为奴隶,我也不能剥夺他人生命，或胁迫他人成为奴隶。

耶鲁公开课 - 公正课程节选

Even after years of freedom, Henson would remember the doctor as a "liberal, jovial" man of kind impulses, and he might well have lived out his life in passive oblivion as a slave had not it been for another stroke of fate that abruptly changed his life yet again.

NPR: A Radical History of the Underground Railroad

Life without goals is lived as a slave to a collection of circumstances.

FORBES: Don't Be A Slave To Circumstance -- Set Goals