What a natural emotion we love those who are kind to us!There are far fewer people who are not grateful for the favors they have received than those who do good deeds in return.If you sell me something, I'll bargain with you, but if you make a false gift and try to sell it to me later at a price you set, you're deceiving.Gratuitous gifts are invaluable in themselves.The human mind itself is the law, if you let it be blind, you lose it; if you let it free, you gain it.