There is no greater difference between men than between grateful and ungrateful people. Votes: 4
Reginald Horace BlythIt is no tragedy to do ungrateful people favors, but it is unbearable to be indebted to a scoundrel. Votes: 4
Francois de La RochefoucauldWe seldom find people ungrateful so long as it is thought we can serve them. Votes: 1
Francois de La Rochefoucauld