Question

What does "One for all and all for one" mean

Answer 1

• Each individual should act for the benefit of the group, and the group should act for the benefit of each individual.

Answer 2

This phrase is in the Federal Palace, Swiss constitution, the Three Musketeers.

(1. deliberately using it to evoke a sense of duty and solidarity and national unity in the population of the young nation)

It is to show that the world should be joined as a whole and  not to seperate.