There's a tiredness of abstract inteligence, and it's the most horrible of tirednesses. It doesn't weight on you like the tiredness of the body, nor does it worry you like the tiredness of knowledge and emotion. It's a weightiness of the conscience of the world, an inability of the soul to breathe.
Fernando PessoaWhat Hells and Purgatories and Heavens I have inside of me! But who sees me do anything that disagrees with life--me, so calm and peaceful?
Fernando PessoaTo think is to destroy. The very process of thought indicates it for the same thought, as thinking is decomposing.
Fernando Pessoa