What positive effects did this policy have in their colonies

Imperialism can give native peoples from different countries many positive opportunities and the change to live a new improved lifestyle. Imperialism can change laws giving people more freedom and rights. ... Although imperialism led to other good results, it also caused many negative situations and events such as slavery.

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.