People differ drastically in many fundamental ways. This should be taught at school among other facts of utmost importance. Can you even imagine the inner experience of a dolphin or a bear, let alone be sure it's the same like that of yours? The degree of difference between you and another person you meet can be equally substantial. Many believe a diference is just a matter of personality - another person may be more or less lazy, more or less smart, more or less sociable than you etc but this way of thinking is absurdly primitive, like saying a laptop is no different from a coffee machine, just more lazy because it won't make you a cup of coffee.
