What he wants to say through his films : check out.
1990 : Jawani Zindabad : Crusade against dowry. Neither give nor take it, and expose all who do so.
1992 : Jo Jeeta Wohi Sikandar : Go for hard work, perseverance, toil, persistence, to finally achieve your aim. And do not take others for granted.
1993 : Hum Hain Rahi Pyar Ke : Grow up and take responsibility.
1999 : Sarfarosh : Anti-terrorism.
2001 : Lagaan : Take up a new challenge, inspire others for a bigger cause, put in the hard-work, coordinate the team.
2001 : Dil Chahta Hai : Understand love and friendship for a healthy personal and social life.
2005 : Mangal Pandey :The Rising : stand up against injustice, even if you have to lay down your life for it.
2006 : Rang de Basanti : Get serious in life, the country needs you.
2007 : Taare Zameen Par : Each person is important, in spite of all limitations. Do not undermine anyone.
2008 : Ghajini : Never forget to take revenge.
2009 : 3 Idiots : Knowledge must be acquired and applied, not used as a money-making tool. Chase excellence, and success will chase you.
Thanks Aamir, for your thought-provoking movies. Keep it up! We need you (at regular intervals), to remind us to be superior human beings.