Let's decode it using perl 

perl -MO=Deparse perl_is_simple.pl

print chr hex length ' bless localtime ref ' if length
'aller ve' and print 'P' and print 'e' and print 'r' 
and print 'l' and print ' ' and print 'i' and print 
's' and print ' ' and print 's' and print 'i' and print
'm' and print 'p' and print 'l' and print 'e';