If someone is better dressed than yourself or is more wealthy, you should feel that they are enjoying what they have and you should be content and happy with what you have.

Forbearance endows you with strength to face the slings and arrows of outrageous fortune. A person without forbearance easily succumbs to reverses and difficulties. Together with truth and forbearance, you must cultivate freedom from jealousy too. Envy is like the pest that attacks the root of a tree. Envy can destroy your entire life. We enjoy many things in life - knowledge, wealth, position, power, etc. But if the virus of envy enters our minds, it will pollute everything. Never give place to envy even in the smallest matter. If a fellow-student scores more marks than you, do not feel envious. If others do better than you, feel happy for them, rather than allow yourself to be consumed by envy. If someone is better dressed than yourself or is more wealthy, you should feel that they are enjoying what they have and you should be content and happy with what you have. To be free from envy is truly divine.

Bagavan Sri Sri Sri Sathya Sai Baba