In 1931, Einstein wrote a small letter to Mohandas Karamchand Gandhi expressing his admiration for the Father of the Nation. Despite not meeting even once, the two great minds shared their views on non-violence.

In his letter, Einstein mentioned how he hoped to see Mahatma Gandhi's methods of non-violence spread beyond the Indian borders to help tackle world conflicts of the time.

To this, Gandhi sent Einstein a reply, saying that he was delighted that his work on non-violence was being acknowledged, and that he wished to meet Einstein at his ashram someday.

Albert Einstein also went on to say, and I quote:

"Generations to come, it may well be, will scarce believe that such a man as this one ever in flesh and blood walked upon this Earth."

Oh BTW, all of this talk of non-violence precedes the atomic bomb era in which Einstein did have a role to play!