I think diversity can also be a resource, an asset, especially in a world that is becoming globalized, to deal with difference, to deal with variety, to deal with complexity.
My third maxim was to try always to conquer myself rather than fortune, and to change my desires rather than the order of the world, and generally to accustom myself to believing that there is nothing entirely in our power except our thoughts, so that after we have done our best regarding things external to us, everything in which we do not succeed is for us absolutely impossible.