You can not be tactful, but you must understand the world You can not be tactful, but you must understand the world You can not be tactful, but you must understand the world You can not be tactful, but you must understand the world You can not be tactful, but you must understand the world You can not be tactful, but you must understand the world You can not be tactful, but you must understand the world You can not be tactful, but you must understand the world You can not be tactful, but you must understand the world You can not be tactful, but you must understand the world You can not be tactful, but you must understand the world You can not be tactful, but you must understand the world You can not be tactful, but you must understand the world