In some ways we are all the same. We all have the same human nature. We share a common humanity. We all have human bodies and human minds, we all have human thoughts and human feelings.
Yet in other ways we are all completely different and unique. No two people are truly alike. No two people can ever have the same experience of life, the same perspective, the same mind.
Even identical twins are unique in this respect: twin number 1 will always be twin number 1 and will never know what it is actually like to be twin number 2, to experience life and see the world through number 2’s eyes.