Jame Joyce thought that ‘Thought is the thought of thought’ or so he wrote in Ulysses which he started in 1914, at the beginning of The Great War, when people forgot to think and petty jealousies among Imperial cousins killed millions.
Rabindranath Tagore, while on a US tour in 1916, wrote that ‘You who live under the delusion that you are free, are every day sacrificing your freedom and humanity to this fetish of nationalism, living in the dense poisonous atmosphere of world-wide suspicion and greed and panic.’
James Joyce 
Rabindranath Tagore