Don't let Anyone talk you about your vision

Don't let Anyone talk you about your vision.

There are few people who will try to get about your vision.They I'll tell you that are you crazy,and that can be done.There will be some people who will laugh at your vision to bring down to their level,just ignore them and focus on your visons and goals.
I would like to give one example of mine friend.
My friend Matya was in higher school,once he went to school their his teacher told everyone to write, what they wanted to do when they will grew up? Matya wrote that he want to own his own Home /Car and all. After his teacher checked his assignment she said that the grade reflected that he deemed was unrealistic.After that matya said you keep your F aside ,I am keeping my dream alive.Today matya has his own car/home/bike.
So the message I want to give to the audience is never under estimate one.