Slavery is also as ancient as war, and was as human nature.

have declared war on human nature, and nature is exacting an awful retribution.

The rights of human nature are deeply wounded by this infamous practice of slavery.

His works (taken together) are almost like a new edition of human nature.

There is a hearty Puritanism in the view of human nature which pervades the instrument of 1787 It is the work of men who believed in original sin, and were resolved to leave open for transgressors no door which they could possibly shut.

You know, it's almost human nature. If you give me a gift, I feel indebted to you... assuming it's a substantial gift.