The best time to negotiate your salary for a new job is the moment AFTER they say they want you, and not before. Then it becomes a game of chicken for each side to name an amount first, but it is to your advantage to get them to give a number before you do.
Jealous souls will not be answered so; They are not ever jealous for the cause, But jealous for they are jealous: 'tis a monster Begot upon itself,born on itself.