Who was the european country that had a colony in brazil and it initially brought in slaves to grow what

Portugal, Sugar

Brazil was colonized by the Portuguese who later on brought slaves to grow sugar. They brought slaves when they found it difficult to use the Indians as slaves. As a result, a huge amount of gains from Brazil as a colony came from sugar

i confess that there are several parts of this constitution which i do not at present approve, but i am not sure i shall never approve them: for having lived long, i have experienced many instances of being obliged by better information or fuller consideration, to change opinions even on important subjects, which i once thought right, but found to be otherwise. it is therefore that the older i grow, the more apt i am to doubt my own judgment, and to pay more respect to the judgment of others.