Do all the | default in the language files and access lang strings in index using simple variables

_includes/langs/nothing_to_hide

@@ -0,0 +1,3 @@
+{% assign title = include.lang.title | default: include.en.title %}
+{% assign quote = include.lang.quote | default: include.en.quote %}
+{% assign talk_name = include.lang.talk_name | default: include.en.talk_name %}