He reads much;He is a great observer and he looksQuite through the deeds of men: he loves no plays,As thou dost, Antony; he hears no music;Seldom he smiles, and smiles in such a sortAs if he mock'd himself and scorn'd his spiritThat could be moved to smile at any thing.Such men as he be never at heart's easeWhiles they behold a greater than themselves,And therefore are they very dangerous.
William Shakespeare, Julius Caesar
dangerous, men