Life is short (You need Python)
If it's not tested, it's broken.
Life's better without braces.
Perl is like vise grips. You can do anything with it but it is the wrong tool for every job.
The complexity of C++ (even more complexity has been added in the new C++), and the resulting impact on productivity, is no longer justified. All the hoops that the C++ programmer had to jump through in order to use a C-compatible language make no sense anymore - they're just a waste of time and effort. Now, Go makes much more sense for the class of problems that C++ was originally intended to solve.
Python is executable pseudocode. Perl is executable line noise.