Want to raise a bilingual child. Should me and my wife speak different languages to our newborn right from the beginning?

@darius your questions speaks your answer. You see benefits in raising him bilingual. Studies and personal experience shows that babies learn things way faster then adults. So if you even start teaching him 6 different languages, the baby will learn really well. Provided the support of listening those languages around on regular basis. If you speak just 1 language at home, that would become his prominent language. Also, it is interesting to know that babies start learning well before they start speaking. So if they don't tell you doesn't mean they're lying :) Ref: http://www.human.cornell.edu/hd/outreach-extension/upload/casasola.pdf