Jealousy is considering other person received the thing that you deserved.

The person who is always criticizing others is usually the one who deserves criticism the most.

A person who is angry with one is angry with the other.

You will never get disappointed if you do not desire what you do not deserve.

To give in order to receive is not to give, but to beg.

A person is always ready to favour him from whom he received a gift in the past.