The Golang FAQ will help answer your questions about some of their design principles[0]. Rob Pike also has some interesting views on why Go seems to attract Python and Ruby devs rather than C and C++ devs[1].

[0] https://golang.org/doc/faq#What_is_the_purpose_of_the_projec...

[1] http://commandcenter.blogspot.com/2012/06/less-is-exponentia...