Do I think differently in English and French? Absolutely. This article sheds some lights on the reasons behind the differences and their effects. Apparently, being bilingual provides a notable increase in resistance to bullshit. Fascinating.
Words in a foreign language simply don’t set off emotional resonances as they do in a native tongue because the associative links are fewer and weaker (and perhaps connected to the more cerebral classroom settings in which they were first learned)—meaning that we quite literally feel less when using a second language. We become a bit like the cool, unemotional Spock from Star Trek. Our mother tongue, on the other hand, incites us to Captain Kirk-like bouts of impulsive passion.
Read more (in English only, oh the irony) on Does Speaking in a Second Language Make You Think More, or Feel Less? | Discover Magazine