The highest flights of charity, devotion, trust, patience, bravery to which the wings of human nature have spread themselves have been flown for religious ideals.

A man receiving charity always hates his benefactor- it is a fixed characteristic 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.

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

What is government itself but the greatest of all reflections on human nature? If men were angels, no government would be necessary. If angels were to govern men, neither external nor internal controls on government would be necessary.

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