Motivation for yourself
Motivation for yourself :
If people laugh at you , let them do , your success will give them answer.
If people speak wrong things about you , let them do , your position will give them answer .
If people don't give value to you , let them do , your status will give them answer.
So ultimately your hard work and your success would be the best answer to them. But then also they will be speaking , let them do because your level will rise so high such that you won't be having time to think or listen to such petty things .
You should not be bothered because of others because they will keep bothering you and if they succeed , you fail . You have to just concentrate on your work and move on .